20100212101100 has 18 divisors (see below), whose sum is σ = 43617460259604. Its totient is φ = 8040084840400.

The previous prime is 20100212101093. The next prime is 20100212101133. The reversal of 20100212101100 is 110121200102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100501060406 + ... + 100501060605.

Almost surely, 2^{20100212101100} is an apocalyptic number.

20100212101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100212101100 is an abundant number, since it is smaller than the sum of its proper divisors (23517248158504).

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

20100212101100 is a wasteful number, since it uses less digits than its factorization.

20100212101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201002121025 (or 201002121018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100212101100 its reverse (110121200102), we get a palindrome (20210333301202).

The spelling of 20100212101100 in words is "twenty trillion, one hundred billion, two hundred twelve million, one hundred one thousand, one hundred".