2021121120112 has 20 divisors (see below), whose sum is σ = 4050953970120. Its totient is φ = 975713643968.

The previous prime is 2021121120071. The next prime is 2021121120163. The reversal of 2021121120112 is 2110211211202.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 2177931778 + ... + 2177932705.

It is an arithmetic number, because the mean of its divisors is an integer number (202547698506).

Almost surely, 2^{2021121120112} is an apocalyptic number.

It is an amenable number.

2021121120112 is an abundant number, since it is smaller than the sum of its proper divisors (2029832850008).

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

2021121120112 is a wasteful number, since it uses less digits than its factorization.

2021121120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355864520 (or 4355864514 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2021121120112 its reverse (2110211211202), we get a palindrome (4131332331314).

The spelling of 2021121120112 in words is "two trillion, twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, one hundred twelve".