20110122112110 has 32 divisors (see below), whose sum is σ = 48264531979392. Its totient is φ = 5362672684320.

The previous prime is 20110122112099. The next prime is 20110122112111. The reversal of 20110122112110 is 1121122101102.

It is a happy number.

It is a super-2 number, since 2×20110122112110² (a number of 27 digits) contains 22 as substring.

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 20110122112110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110122112111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4931677 + ... + 8033783.

It is an arithmetic number, because the mean of its divisors is an integer number (1508266624356).

Almost surely, 2^{20110122112110} is an apocalyptic number.

20110122112110 is an abundant number, since it is smaller than the sum of its proper divisors (28154409867282).

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

20110122112110 is a wasteful number, since it uses less digits than its factorization.

20110122112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318208.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20110122112110 its reverse (1121122101102), we get a palindrome (21231244213212).

The spelling of 20110122112110 in words is "twenty trillion, one hundred ten billion, one hundred twenty-two million, one hundred twelve thousand, one hundred ten".