22103112210 has 32 divisors (see below), whose sum is σ = 53234936640. Its totient is φ = 5873333568.

The previous prime is 22103112203. The next prime is 22103112211. The reversal of 22103112210 is 1221130122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22103112210.

It is not an unprimeable number, because it can be changed into a prime (22103112211) 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, 1293225 + ... + 1310204.

It is an arithmetic number, because the mean of its divisors is an integer number (1663591770).

Almost surely, 2^22103112210 is an apocalyptic number.

22103112210 is an abundant number, since it is smaller than the sum of its proper divisors (31131824430).

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

22103112210 is a wasteful number, since it uses less digits than its factorization.

22103112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603722.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22103112210 its reverse (1221130122), we get a palindrome (23324242332).

The spelling of 22103112210 in words is "twenty-two billion, one hundred three million, one hundred twelve thousand, two hundred ten".