2120111100099 has 16 divisors (see below), whose sum is σ = 3154047206400. Its totient is φ = 1407493557288.

The previous prime is 2120111100089. The next prime is 2120111100127. The reversal of 2120111100099 is 9900011110212.

It is not a de Polignac number, because 2120111100099 - 2²⁰ = 2120110051523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2120111100089) 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, 164266839 + ... + 164279744.

It is an arithmetic number, because the mean of its divisors is an integer number (197127950400).

Almost surely, 2^{2120111100099} is an apocalyptic number.

2120111100099 is a deficient number, since it is larger than the sum of its proper divisors (1033936106301).

2120111100099 is a wasteful number, since it uses less digits than its factorization.

2120111100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328546831 (or 328546825 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 2120111100099 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one hundred thousand, ninety-nine".