202111212112122 has 8 divisors (see below), whose sum is σ = 404222424224256. Its totient is φ = 67370404037372.

The previous prime is 202111212112097. The next prime is 202111212112133. The reversal of 202111212112122 is 221211212111202.

It is a sphenic number, since it is the product of 3 distinct primes.

202111212112122 is an admirable number.

It is a super-2 number, since 2×202111212112122² (a number of 29 digits) contains 22 as substring.

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, 16842601009338 + ... + 16842601009349.

It is an arithmetic number, because the mean of its divisors is an integer number (50527803028032).

Almost surely, 2^{202111212112122} is an apocalyptic number.

202111212112122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

202111212112122 is a wasteful number, since it uses less digits than its factorization.

202111212112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33685202018692.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 202111212112122 its reverse (221211212111202), we get a palindrome (423322424223324).

The spelling of 202111212112122 in words is "two hundred two trillion, one hundred eleven billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-two".