12099010111 has 4 divisors (see below), whose sum is σ = 12223742272. Its totient is φ = 11974277952.

The previous prime is 12099010097. The next prime is 12099010117. The reversal of 12099010111 is 11101099021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11101099021 = 99901 ⋅111121.

It is a cyclic number.

It is not a de Polignac number, because 12099010111 - 2⁷ = 12099009983 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 (12099010117) 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, 62365935 + ... + 62366128.

It is an arithmetic number, because the mean of its divisors is an integer number (3055935568).

Almost surely, 2^12099010111 is an apocalyptic number.

12099010111 is a deficient number, since it is larger than the sum of its proper divisors (124732161).

12099010111 is an equidigital number, since it uses as much as digits as its factorization.

12099010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124732160.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 12099010111 in words is "twelve billion, ninety-nine million, ten thousand, one hundred eleven".