202012121221112 has 16 divisors (see below), whose sum is σ = 388011086492400. Its totient is φ = 98542498156480.

The previous prime is 202012121221103. The next prime is 202012121221139. The reversal of 202012121221112 is 211122121210202.

It is a congruent number.

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, 307945306412 + ... + 307945307067.

It is an arithmetic number, because the mean of its divisors is an integer number (24250692905775).

Almost surely, 2^{202012121221112} is an apocalyptic number.

It is an amenable number.

202012121221112 is a deficient number, since it is larger than the sum of its proper divisors (185998965271288).

202012121221112 is a wasteful number, since it uses less digits than its factorization.

202012121221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615890613526 (or 615890613522 counting only the distinct ones).

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

Adding to 202012121221112 its reverse (211122121210202), we get a palindrome (413134242431314).

The spelling of 202012121221112 in words is "two hundred two trillion, twelve billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twelve".