2131010100220 has 24 divisors (see below), whose sum is σ = 4559557461984. Its totient is φ = 836320944576.

The previous prime is 2131010100211. The next prime is 2131010100259. The reversal of 2131010100220 is 220010101312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131010100220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005192384 + ... + 1005194503.

It is an arithmetic number, because the mean of its divisors is an integer number (189981560916).

Almost surely, 2^{2131010100220} is an apocalyptic number.

2131010100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131010100220 is an abundant number, since it is smaller than the sum of its proper divisors (2428547361764).

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

2131010100220 is a wasteful number, since it uses less digits than its factorization.

2131010100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010386949 (or 2010386947 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2131010100220 its reverse (220010101312), we get a palindrome (2351020201532).

The spelling of 2131010100220 in words is "two trillion, one hundred thirty-one billion, ten million, one hundred thousand, two hundred twenty".