20011200022100 has 144 divisors (see below), whose sum is σ = 51477558642048. Its totient is φ = 6609624053760.

The previous prime is 20011200022019. The next prime is 20011200022103. The reversal of 20011200022100 is 122000211002.

It is a happy number.

20011200022100 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011200022103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2356289 + ... + 6750888.

Almost surely, 2^{20011200022100} is an apocalyptic number.

20011200022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011200022100 is an abundant number, since it is smaller than the sum of its proper divisors (31466358619948).

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

20011200022100 is a wasteful number, since it uses less digits than its factorization.

20011200022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9107314 (or 9107307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20011200022100 its reverse (122000211002), we get a palindrome (20133200233102).

The spelling of 20011200022100 in words is "twenty trillion, eleven billion, two hundred million, twenty-two thousand, one hundred".