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10202121111210 = 235726940218443
BaseRepresentation
bin1001010001110101110111…
…0011100000011010101010
31100010022110100202112220020
42110131131303200122222
52314122421001024320
633410442325541310
72102036033423100
oct224353563403252
940108410675806
1010202121111210
113283771442496
1211892a5874836
13590095a47692
14273adcbd3c70
1512a5a96ee940
hex9475dce06aa

10202121111210 has 48 divisors (see below), whose sum is σ = 28482656494176. Its totient is φ = 2331913396512.

The previous prime is 10202121111191. The next prime is 10202121111229. The reversal of 10202121111210 is 1211112120201.

It is a happy number.

10202121111210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10202121111191) and next prime (10202121111229).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10202121111210.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3470107752 + ... + 3470110691.

It is an arithmetic number, because the mean of its divisors is an integer number (593388676962).

Almost surely, 210202121111210 is an apocalyptic number.

10202121111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10202121111210 is an abundant number, since it is smaller than the sum of its proper divisors (18280535382966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10202121111210 is a wasteful number, since it uses less digits than its factorization.

10202121111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940218467 (or 6940218460 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10202121111210 its reverse (1211112120201), we get a palindrome (11413233231411).

The spelling of 10202121111210 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred eleven thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 6940218443 13880436886 20820655329 34701092215 41641310658 48581529101 69402184430 97163058202 104103276645 145744587303 208206553290 242907645505 291489174606 340070703707 485815291010 680141407414 728722936515 1020212111121 1457445873030 1700353518535 2040424222242 3400707037070 5101060555605 10202121111210