22021210121188 has 12 divisors (see below), whose sum is σ = 38543670570412. Its totient is φ = 11008732815360.

The previous prime is 22021210121161. The next prime is 22021210121189. The reversal of 22021210121188 is 88112101212022.

It can be written as a sum of positive squares in 2 ways, for example, as 21051138775104 + 970071346084 = 4588152^2 + 984922^2 .

It is not an unprimeable number, because it can be changed into a prime (22021210121189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468034845 + ... + 468081892.

Almost surely, 2^{22021210121188} is an apocalyptic number.

It is an amenable number.

22021210121188 is a deficient number, since it is larger than the sum of its proper divisors (16522460449224).

22021210121188 is a wasteful number, since it uses less digits than its factorization.

22021210121188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936122622 (or 936122620 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 31.

The spelling of 22021210121188 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, one hundred twenty-one thousand, one hundred eighty-eight".