20210001121112 has 64 divisors (see below), whose sum is σ = 41543156759040. Its totient is φ = 9141004080000.

The previous prime is 20210001121111. The next prime is 20210001121153. The reversal of 20210001121112 is 21112110001202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210001121111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17754383 + ... + 18858369.

It is an arithmetic number, because the mean of its divisors is an integer number (649111824360).

Almost surely, 2^{20210001121112} is an apocalyptic number.

20210001121112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20210001121112 is an abundant number, since it is smaller than the sum of its proper divisors (21333155637928).

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

20210001121112 is a wasteful number, since it uses less digits than its factorization.

20210001121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105032 (or 1105028 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20210001121112 its reverse (21112110001202), we get a palindrome (41322111122314).

The spelling of 20210001121112 in words is "twenty trillion, two hundred ten billion, one million, one hundred twenty-one thousand, one hundred twelve".