110021120121 has 64 divisors (see below), whose sum is σ = 167384604672. Its totient is φ = 63676800000.

The previous prime is 110021120113. The next prime is 110021120161. The reversal of 110021120121 is 121021120011.

It is not a de Polignac number, because 110021120121 - 2³ = 110021120113 is a prime.

It is a super-2 number, since 2×110021120121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110021120097 and 110021120106.

It is not an unprimeable number, because it can be changed into a prime (110021120161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34198305 + ... + 34201521.

It is an arithmetic number, because the mean of its divisors is an integer number (2615384448).

Almost surely, 2^110021120121 is an apocalyptic number.

110021120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110021120121 is a deficient number, since it is larger than the sum of its proper divisors (57363484551).

110021120121 is a wasteful number, since it uses less digits than its factorization.

110021120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 110021120121 its reverse (121021120011), we get a palindrome (231042240132).

The spelling of 110021120121 in words is "one hundred ten billion, twenty-one million, one hundred twenty thousand, one hundred twenty-one".