18223712101 has 16 divisors (see below), whose sum is σ = 21194825344. Its totient is φ = 15345785664.

The previous prime is 18223712081. The next prime is 18223712113. The reversal of 18223712101 is 10121732281.

It is a cyclic number.

It is not a de Polignac number, because 18223712101 - 2³³ = 9633777509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18223712101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18223712161) 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, 122851 + ... + 227023.

It is an arithmetic number, because the mean of its divisors is an integer number (1324676584).

Almost surely, 2^18223712101 is an apocalyptic number.

It is an amenable number.

18223712101 is a deficient number, since it is larger than the sum of its proper divisors (2971113243).

18223712101 is a wasteful number, since it uses less digits than its factorization.

18223712101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104620.

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 18223712101 in words is "eighteen billion, two hundred twenty-three million, seven hundred twelve thousand, one hundred one".