22122002120 has 32 divisors (see below), whose sum is σ = 49823926200. Its totient is φ = 8840014848.

The previous prime is 22122002093. The next prime is 22122002141. The reversal of 22122002120 is 2120022122.

It can be written as a sum of positive squares in 4 ways, for example, as 7470836356 + 14651165764 = 86434^2 + 121042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22122002095 and 22122002104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233699 + ... + 314418.

Almost surely, 2^22122002120 is an apocalyptic number.

22122002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122002120 is an abundant number, since it is smaller than the sum of its proper divisors (27701924080).

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

22122002120 is a wasteful number, since it uses less digits than its factorization.

22122002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549137 (or 549133 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22122002120 its reverse (2120022122), we get a palindrome (24242024242).

It can be divided in two parts, 22122002 and 120, that added together give a palindrome (22122122).

The spelling of 22122002120 in words is "twenty-two billion, one hundred twenty-two million, two thousand, one hundred twenty".