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10012002122220 = 22357106931876997
BaseRepresentation
bin1001000110110001100111…
…0101000111100111101100
31022110010201122100020022120
42101230121311013213230
52303014040020402340
633143241132112540
72052225513610260
oct221543165074754
938403648306276
1010012002122220
11321008020509a
121158487305750
13578187883ca7
142688251400a0
1512567d9824d0
hex91b19d479ec

10012002122220 has 192 divisors, whose sum is σ = 32083024081920. Its totient is φ = 2285272839168.

The previous prime is 10012002122173. The next prime is 10012002122249. The reversal of 10012002122220 is 2222120021001.

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 10012002122220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1430895762 + ... + 1430902758.

It is an arithmetic number, because the mean of its divisors is an integer number (167099083760).

Almost surely, 210012002122220 is an apocalyptic number.

10012002122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10012002122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16041512040960).

10012002122220 is an abundant number, since it is smaller than the sum of its proper divisors (22071021959700).

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

10012002122220 is a wasteful number, since it uses less digits than its factorization.

10012002122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11272 (or 11270 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10012002122220 its reverse (2222120021001), we get a palindrome (12234122143221).

The spelling of 10012002122220 in words is "ten trillion, twelve billion, two million, one hundred twenty-two thousand, two hundred twenty".