202012121112 has 32 divisors (see below), whose sum is σ = 506485742400. Its totient is φ = 67143315104.

The previous prime is 202012121107. The next prime is 202012121131. The reversal of 202012121112 is 211121210202.

It is a super-2 number, since 2×202012121112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202012121091 and 202012121100.

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, 12120162 + ... + 12136817.

It is an arithmetic number, because the mean of its divisors is an integer number (15827679450).

Almost surely, 2^202012121112 is an apocalyptic number.

It is an amenable number.

202012121112 is an abundant number, since it is smaller than the sum of its proper divisors (304473621288).

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

202012121112 is a wasteful number, since it uses less digits than its factorization.

202012121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24257335 (or 24257331 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202012121112 its reverse (211121210202), we get a palindrome (413133331314).

The spelling of 202012121112 in words is "two hundred two billion, twelve million, one hundred twenty-one thousand, one hundred twelve".