20021020001112 has 32 divisors (see below), whose sum is σ = 53902746157680. Its totient is φ = 6160313846400.

The previous prime is 20021020001083. The next prime is 20021020001173. The reversal of 20021020001112 is 21110002012002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32084967639 + ... + 32084968262.

Almost surely, 2^{20021020001112} is an apocalyptic number.

It is an amenable number.

20021020001112 is an abundant number, since it is smaller than the sum of its proper divisors (33881726156568).

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

20021020001112 is a wasteful number, since it uses less digits than its factorization.

20021020001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64169935923 (or 64169935919 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20021020001112 its reverse (21110002012002), we get a palindrome (41131022013114).

The spelling of 20021020001112 in words is "twenty trillion, twenty-one billion, twenty million, one thousand, one hundred twelve".