22222102111220 has 48 divisors (see below), whose sum is σ = 50911438552128. Its totient is φ = 8080348085760.

The previous prime is 22222102111201. The next prime is 22222102111241. The reversal of 22222102111220 is 2211120122222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22222102111192 and 22222102111201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694012 + ... + 6878508.

It is an arithmetic number, because the mean of its divisors is an integer number (1060654969836).

Almost surely, 2^{22222102111220} is an apocalyptic number.

22222102111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222102111220 is an abundant number, since it is smaller than the sum of its proper divisors (28689336440908).

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

22222102111220 is a wasteful number, since it uses less digits than its factorization.

22222102111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204000 (or 5203998 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22222102111220 its reverse (2211120122222), we get a palindrome (24433222233442).

It can be divided in two parts, 22222102 and 111220, that added together give a palindrome (22333322).

The spelling of 22222102111220 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred twenty".