2102120101191 has 16 divisors (see below), whose sum is σ = 3074522226048. Its totient is φ = 1266973437600.

The previous prime is 2102120101177. The next prime is 2102120101201. The reversal of 2102120101191 is 1911010212012.

It is not a de Polignac number, because 2102120101191 - 2³³ = 2093530166599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102120102191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175962561 + ... + 175974506.

It is an arithmetic number, because the mean of its divisors is an integer number (192157639128).

Almost surely, 2^{2102120101191} is an apocalyptic number.

2102120101191 is a deficient number, since it is larger than the sum of its proper divisors (972402124857).

2102120101191 is a wasteful number, since it uses less digits than its factorization.

2102120101191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351937262.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 2102120101191 in words is "two trillion, one hundred two billion, one hundred twenty million, one hundred one thousand, one hundred ninety-one".