22012122201012 has 72 divisors (see below), whose sum is σ = 56062242355392. Its totient is φ = 7282133040000.

The previous prime is 22012122200993. The next prime is 22012122201031. The reversal of 22012122201012 is 21010222121022.

It is a happy number.

22012122201012 is a `hidden beast` number, since 220 + 1 + 212 + 220 + 1 + 0 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (22012122200993) and next prime (22012122201031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1795488 + ... + 6873719.

It is an arithmetic number, because the mean of its divisors is an integer number (778642254936).

Almost surely, 2^{22012122201012} is an apocalyptic number.

It is an amenable number.

22012122201012 is an abundant number, since it is smaller than the sum of its proper divisors (34050120154380).

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

22012122201012 is a wasteful number, since it uses less digits than its factorization.

22012122201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8669749 (or 8669744 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22012122201012 its reverse (21010222121022), we get a palindrome (43022344322034).

The spelling of 22012122201012 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, two hundred one thousand, twelve".