22221011201012 has 12 divisors (see below), whose sum is σ = 41878059571236. Its totient is φ = 10255851323520.

The previous prime is 22221011200957. The next prime is 22221011201027. The reversal of 22221011201012 is 21010211012222.

It can be written as a sum of positive squares in 2 ways, for example, as 4358182315876 + 17862828885136 = 2087626^2 + 4226444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213663569189 + ... + 213663569292.

It is an arithmetic number, because the mean of its divisors is an integer number (3489838297603).

Almost surely, 2^{22221011201012} is an apocalyptic number.

It is an amenable number.

22221011201012 is a deficient number, since it is larger than the sum of its proper divisors (19657048370224).

22221011201012 is a wasteful number, since it uses less digits than its factorization.

22221011201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427327138498 (or 427327138496 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22221011201012 its reverse (21010211012222), we get a palindrome (43231222213234).

The spelling of 22221011201012 in words is "twenty-two trillion, two hundred twenty-one billion, eleven million, two hundred one thousand, twelve".