20101100020012 has 72 divisors (see below), whose sum is σ = 40888120488768. Its totient is φ = 8573419219200.

The previous prime is 20101100019983. The next prime is 20101100020049. The reversal of 20101100020012 is 21002000110102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1821123 + ... + 6596869.

It is an arithmetic number, because the mean of its divisors is an integer number (567890562344).

Almost surely, 2^{20101100020012} is an apocalyptic number.

20101100020012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20101100020012 is an abundant number, since it is smaller than the sum of its proper divisors (20787020468756).

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

20101100020012 is a wasteful number, since it uses less digits than its factorization.

20101100020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776127 (or 4776108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20101100020012 its reverse (21002000110102), we get a palindrome (41103100130114).

The spelling of 20101100020012 in words is "twenty trillion, one hundred one billion, one hundred million, twenty thousand, twelve".