111099012101 has 16 divisors (see below), whose sum is σ = 138553545600. Its totient is φ = 86545351680.

The previous prime is 111099012071. The next prime is 111099012103. The reversal of 111099012101 is 101210990111.

It is a cyclic number.

It is not a de Polignac number, because 111099012101 - 2²⁶ = 111031903237 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 (111099012103) 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, 56405 + ... + 474741.

It is an arithmetic number, because the mean of its divisors is an integer number (8659596600).

Almost surely, 2^111099012101 is an apocalyptic number.

111099012101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111099012101 is a deficient number, since it is larger than the sum of its proper divisors (27454533499).

111099012101 is a wasteful number, since it uses less digits than its factorization.

111099012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421804.

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

The spelling of 111099012101 in words is "one hundred eleven billion, ninety-nine million, twelve thousand, one hundred one".