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10212100110220 = 2251497493409739
BaseRepresentation
bin1001010010011011000010…
…0110010111011110001100
31100011021012211000020002011
42110212300212113132030
52314303340112011340
633415212442311004
72102541234466501
oct224466046273614
940137184006064
1010212100110220
113287a22313108
12118b20b7b8464
13590cc6290c18
142743a824b4a8
1512a9908100ea
hex949b099778c

10212100110220 has 24 divisors (see below), whose sum is σ = 21445559730000. Its totient is φ = 4084811568192.

The previous prime is 10212100110217. The next prime is 10212100110221. The reversal of 10212100110220 is 2201100121201.

It is a super-3 number, since 3×102121001102203 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 10212100110220.

It is not an unprimeable number, because it can be changed into a prime (10212100110221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290111 + ... + 4699849.

It is an arithmetic number, because the mean of its divisors is an integer number (893564988750).

Almost surely, 210212100110220 is an apocalyptic number.

10212100110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212100110220 is an abundant number, since it is smaller than the sum of its proper divisors (11233459619780).

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

10212100110220 is a wasteful number, since it uses less digits than its factorization.

10212100110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559497 (or 3559495 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10212100110220 its reverse (2201100121201), we get a palindrome (12413200231421).

The spelling of 10212100110220 in words is "ten trillion, two hundred twelve billion, one hundred million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 149749 299498 598996 748745 1497490 2994980 3409739 6819478 13638956 17048695 34097390 68194780 510605005511 1021210011022 2042420022044 2553025027555 5106050055110 10212100110220