2120121011994 has 64 divisors (see below), whose sum is σ = 4341312847872. Its totient is φ = 689939280000.

The previous prime is 2120121011993. The next prime is 2120121012043. The reversal of 2120121011994 is 4991101210212.

It is not an unprimeable number, because it can be changed into a prime (2120121011993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231677319 + ... + 231686469.

It is an arithmetic number, because the mean of its divisors is an integer number (67833013248).

Almost surely, 2^{2120121011994} is an apocalyptic number.

2120121011994 is an abundant number, since it is smaller than the sum of its proper divisors (2221191835878).

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

2120121011994 is a wasteful number, since it uses less digits than its factorization.

2120121011994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 2120121011994 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, eleven thousand, nine hundred ninety-four".