22100220111210 has 64 divisors (see below), whose sum is σ = 56696556268800. Its totient is φ = 5499665937920.

The previous prime is 22100220111209. The next prime is 22100220111217. The reversal of 22100220111210 is 1211102200122.

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 22100220111210.

It is not an unprimeable number, because it can be changed into a prime (22100220111217) 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, 390572985 + ... + 390629564.

It is an arithmetic number, because the mean of its divisors is an integer number (885883691700).

Almost surely, 2^{22100220111210} is an apocalyptic number.

22100220111210 is an abundant number, since it is smaller than the sum of its proper divisors (34596336157590).

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

22100220111210 is a wasteful number, since it uses less digits than its factorization.

22100220111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781202623.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22100220111210 its reverse (1211102200122), we get a palindrome (23311322311332).

The spelling of 22100220111210 in words is "twenty-two trillion, one hundred billion, two hundred twenty million, one hundred eleven thousand, two hundred ten".