2111886981330 has 64 divisors (see below), whose sum is σ = 5793547742208. Its totient is φ = 482638403520.

The previous prime is 2111886981311. The next prime is 2111886981359. The reversal of 2111886981330 is 331896881112.

It is a super-2 number, since 2×2111886981330² (a number of 25 digits) contains 22 as substring.

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, 478345 + ... + 2110115.

It is an arithmetic number, because the mean of its divisors is an integer number (90524183472).

Almost surely, 2^{2111886981330} is an apocalyptic number.

2111886981330 is an abundant number, since it is smaller than the sum of its proper divisors (3681660760878).

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

2111886981330 is a wasteful number, since it uses less digits than its factorization.

2111886981330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637951.

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 2111886981330 in words is "two trillion, one hundred eleven billion, eight hundred eighty-six million, nine hundred eighty-one thousand, three hundred thirty".