22102054220 has 48 divisors (see below), whose sum is σ = 47184935616. Its totient is φ = 8695200000.

The previous prime is 22102054211. The next prime is 22102054259. The reversal of 22102054220 is 2245020122.

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 = 22102054192 and 22102054201.

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, 268790 + ... + 341250.

It is an arithmetic number, because the mean of its divisors is an integer number (983019492).

Almost surely, 2^22102054220 is an apocalyptic number.

22102054220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102054220 is an abundant number, since it is smaller than the sum of its proper divisors (25082881396).

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

22102054220 is a wasteful number, since it uses less digits than its factorization.

22102054220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72722 (or 72720 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 22102054220 its reverse (2245020122), we get a palindrome (24347074342).

The spelling of 22102054220 in words is "twenty-two billion, one hundred two million, fifty-four thousand, two hundred twenty".