20202021122112 has 84 divisors (see below), whose sum is σ = 57975977701356. Its totient is φ = 6725804682240.

The previous prime is 20202021122071. The next prime is 20202021122149. The reversal of 20202021122112 is 21122112020202.

It is a happy number.

20202021122112 is a `hidden beast` number, since 20 + 202 + 0 + 211 + 221 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2882307525696 + 17319713596416 = 1697736^2 + 4161696^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20887003 + ... + 21832794.

Almost surely, 2^{20202021122112} is an apocalyptic number.

It is an amenable number.

20202021122112 is an abundant number, since it is smaller than the sum of its proper divisors (37773956579244).

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

20202021122112 is a wasteful number, since it uses less digits than its factorization.

20202021122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42720636 (or 42720623 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20202021122112 its reverse (21122112020202), we get a palindrome (41324133142314).

The spelling of 20202021122112 in words is "twenty trillion, two hundred two billion, twenty-one million, one hundred twenty-two thousand, one hundred twelve".