2102111201099 has 16 divisors (see below), whose sum is σ = 2587561572288. Its totient is φ = 1662985285632.

The previous prime is 2102111201093. The next prime is 2102111201101. The reversal of 2102111201099 is 9901021112012.

It is a cyclic number.

It is not a de Polignac number, because 2102111201099 - 2⁴⁰ = 1002599573323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102111201093) 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, 870302 + ... + 2227475.

It is an arithmetic number, because the mean of its divisors is an integer number (161722598268).

Almost surely, 2^{2102111201099} is an apocalyptic number.

2102111201099 is a deficient number, since it is larger than the sum of its proper divisors (485450371189).

2102111201099 is a wasteful number, since it uses less digits than its factorization.

2102111201099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105254.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 2102111201099 in words is "two trillion, one hundred two billion, one hundred eleven million, two hundred one thousand, ninety-nine".