202112202121112 has 32 divisors (see below), whose sum is σ = 395469194266080. Its totient is φ = 96654467585280.

The previous prime is 202112202121033. The next prime is 202112202121183. The reversal of 202112202121112 is 211121202211202.

It is a super-2 number, since 2×202112202121112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42568589 + ... + 47077692.

It is an arithmetic number, because the mean of its divisors is an integer number (12358412320815).

Almost surely, 2^{202112202121112} is an apocalyptic number.

It is an amenable number.

202112202121112 is a deficient number, since it is larger than the sum of its proper divisors (193356992144968).

202112202121112 is a wasteful number, since it uses less digits than its factorization.

202112202121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89658563 (or 89658559 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202112202121112 its reverse (211121202211202), we get a palindrome (413233404332314).

The spelling of 202112202121112 in words is "two hundred two trillion, one hundred twelve billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".