2111211202099 has 4 divisors (see below), whose sum is σ = 2130580112320. Its totient is φ = 2091842291880.

The previous prime is 2111211202043. The next prime is 2111211202117. The reversal of 2111211202099 is 9902021121112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2111211202099 - 2²⁹ = 2110674331187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111211202099.

It is not an unprimeable number, because it can be changed into a prime (2111211202799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9684454947 + ... + 9684455164.

It is an arithmetic number, because the mean of its divisors is an integer number (532645028080).

Almost surely, 2^{2111211202099} is an apocalyptic number.

2111211202099 is a deficient number, since it is larger than the sum of its proper divisors (19368910221).

2111211202099 is a wasteful number, since it uses less digits than its factorization.

2111211202099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19368910220.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 2111211202099 in words is "two trillion, one hundred eleven billion, two hundred eleven million, two hundred two thousand, ninety-nine".