22122220022120 has 128 divisors (see below), whose sum is σ = 50277687033600. Its totient is φ = 8759991711744.

The previous prime is 22122220022113. The next prime is 22122220022171. The reversal of 22122220022120 is 2122002222122.

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 = 22122220022092 and 22122220022101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3487655669 + ... + 3487662011.

It is an arithmetic number, because the mean of its divisors is an integer number (392794429950).

Almost surely, 2^{22122220022120} is an apocalyptic number.

22122220022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122220022120 is an abundant number, since it is smaller than the sum of its proper divisors (28155467011480).

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

22122220022120 is a wasteful number, since it uses less digits than its factorization.

22122220022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8539 (or 8535 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22122220022120 its reverse (2122002222122), we get a palindrome (24244222244242).

The spelling of 22122220022120 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, twenty-two thousand, one hundred twenty".