11111099012 has 48 divisors (see below), whose sum is σ = 21103555200. Its totient is φ = 5118590880.

The previous prime is 11111099011. The next prime is 11111099059. The reversal of 11111099012 is 21099011111.

It is a super-2 number, since 2×11111099012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (11111099011) 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, 7126289 + ... + 7127847.

It is an arithmetic number, because the mean of its divisors is an integer number (439657400).

Almost surely, 2^11111099012 is an apocalyptic number.

It is an amenable number.

11111099012 is a deficient number, since it is larger than the sum of its proper divisors (9992456188).

11111099012 is a wasteful number, since it uses less digits than its factorization.

11111099012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 26.

The spelling of 11111099012 in words is "eleven billion, one hundred eleven million, ninety-nine thousand, twelve".