2011102120999 has 4 divisors (see below), whose sum is σ = 2011106427120. Its totient is φ = 2011097814880.

The previous prime is 2011102120933. The next prime is 2011102121051. The reversal of 2011102120999 is 9990212011102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011102120999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011102120199) 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, 1353547 + ... + 2419564.

It is an arithmetic number, because the mean of its divisors is an integer number (502776606780).

Almost surely, 2^{2011102120999} is an apocalyptic number.

2011102120999 is a deficient number, since it is larger than the sum of its proper divisors (4306121).

2011102120999 is an equidigital number, since it uses as much as digits as its factorization.

2011102120999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306120.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 2011102120999 in words is "two trillion, eleven billion, one hundred two million, one hundred twenty thousand, nine hundred ninety-nine".