20210000211100 has 108 divisors (see below), whose sum is σ = 51978378030264. Its totient is φ = 6798404296320.

The previous prime is 20210000211067. The next prime is 20210000211113. The reversal of 20210000211100 is 111200001202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38650582 + ... + 39169981.

It is an arithmetic number, because the mean of its divisors is an integer number (481281278058).

Almost surely, 2^{20210000211100} is an apocalyptic number.

20210000211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210000211100 is an abundant number, since it is smaller than the sum of its proper divisors (31768377819164).

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

20210000211100 is a wasteful number, since it uses less digits than its factorization.

20210000211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77820644 (or 77820630 counting only the distinct ones).

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

Adding to 20210000211100 its reverse (111200001202), we get a palindrome (20321200212302).

The spelling of 20210000211100 in words is "twenty trillion, two hundred ten billion, two hundred eleven thousand, one hundred".