2100212211020 has 96 divisors (see below), whose sum is σ = 5513480856576. Its totient is φ = 652856428800.

The previous prime is 2100212211001. The next prime is 2100212211047. The reversal of 2100212211020 is 201122120012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2100212210986 and 2100212211004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1253696 + ... + 2402535.

It is an arithmetic number, because the mean of its divisors is an integer number (57432092256).

Almost surely, 2^{2100212211020} is an apocalyptic number.

2100212211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100212211020 is an abundant number, since it is smaller than the sum of its proper divisors (3413268645556).

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

2100212211020 is a wasteful number, since it uses less digits than its factorization.

2100212211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656631 (or 3656629 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100212211020 its reverse (201122120012), we get a palindrome (2301334331032).

The spelling of 2100212211020 in words is "two trillion, one hundred billion, two hundred twelve million, two hundred eleven thousand, twenty".