20221211022112 has 48 divisors (see below), whose sum is σ = 40806973983384. Its totient is φ = 9857843200000.

The previous prime is 20221211022079. The next prime is 20221211022119. The reversal of 20221211022112 is 21122011212202.

It can be written as a sum of positive squares in 4 ways, for example, as 18892549061136 + 1328661960976 = 4346556^2 + 1152676^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20221211022112.

It is not an unprimeable number, because it can be changed into a prime (20221211022119) by changing a digit.

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, 2712889 + ... + 6913912.

Almost surely, 2^{20221211022112} is an apocalyptic number.

It is an amenable number.

20221211022112 is an abundant number, since it is smaller than the sum of its proper divisors (20585762961272).

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

20221211022112 is a wasteful number, since it uses less digits than its factorization.

20221211022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9628453 (or 9628445 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20221211022112 its reverse (21122011212202), we get a palindrome (41343222234314).

The spelling of 20221211022112 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred twelve".