21110002100010 has 64 divisors (see below), whose sum is σ = 56300174098560. Its totient is φ = 5628650376960.

The previous prime is 21110002099999. The next prime is 21110002100029. The reversal of 21110002100010 is 1000120001112.

It is a happy number.

It is a super-2 number, since 2×21110002100010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 21110002099965 and 21110002100001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2516911 + ... + 6968130.

It is an arithmetic number, because the mean of its divisors is an integer number (879690220290).

Almost surely, 2^{21110002100010} is an apocalyptic number.

21110002100010 is an abundant number, since it is smaller than the sum of its proper divisors (35190171998550).

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

21110002100010 is a wasteful number, since it uses less digits than its factorization.

21110002100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493300 (or 9493294 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 21110002100010 its reverse (1000120001112), we get a palindrome (22110122101122).

The spelling of 21110002100010 in words is "twenty-one trillion, one hundred ten billion, two million, one hundred thousand, ten".