110002100010021 has 32 divisors (see below), whose sum is σ = 163128110275200. Its totient is φ = 73261853360640.

The previous prime is 110002100009987. The next prime is 110002100010071. The reversal of 110002100010021 is 120010001200011.

It is a happy number.

It is not a de Polignac number, because 110002100010021 - 2²³ = 110002091621413 is a prime.

It is a super-2 number, since 2×110002100010021² (a number of 29 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 = 110002100009985 and 110002100010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110002100010071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109014835 + ... + 110019263.

It is an arithmetic number, because the mean of its divisors is an integer number (5097753446100).

Almost surely, 2^{110002100010021} is an apocalyptic number.

It is an amenable number.

110002100010021 is a deficient number, since it is larger than the sum of its proper divisors (53126010265179).

110002100010021 is a wasteful number, since it uses less digits than its factorization.

110002100010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008466 (or 1008460 counting only the distinct ones).

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

Adding to 110002100010021 its reverse (120010001200011), we get a palindrome (230012101210032).

The spelling of 110002100010021 in words is "one hundred ten trillion, two billion, one hundred million, ten thousand, twenty-one".