18922223101 has 4 divisors (see below), whose sum is σ = 19918129600. Its totient is φ = 17926316604.

The previous prime is 18922223029. The next prime is 18922223107. The reversal of 18922223101 is 10132222981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18922223101 - 2⁷ = 18922222973 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 (18922223107) 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, 497953221 + ... + 497953258.

It is an arithmetic number, because the mean of its divisors is an integer number (4979532400).

Almost surely, 2^18922223101 is an apocalyptic number.

It is an amenable number.

18922223101 is a deficient number, since it is larger than the sum of its proper divisors (995906499).

18922223101 is an equidigital number, since it uses as much as digits as its factorization.

18922223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995906498.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 18922223101 in words is "eighteen billion, nine hundred twenty-two million, two hundred twenty-three thousand, one hundred one".