22228723073 has 4 divisors (see below), whose sum is σ = 22945778688. Its totient is φ = 21511667460.

The previous prime is 22228723043. The next prime is 22228723081. The reversal of 22228723073 is 37032782222.

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 22228723073 - 2⁶ = 22228723009 is a prime.

It is a super-2 number, since 2×22228723073² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22228723043) 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, 358527761 + ... + 358527822.

It is an arithmetic number, because the mean of its divisors is an integer number (5736444672).

Almost surely, 2^22228723073 is an apocalyptic number.

It is an amenable number.

22228723073 is a deficient number, since it is larger than the sum of its proper divisors (717055615).

22228723073 is an equidigital number, since it uses as much as digits as its factorization.

22228723073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717055614.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 22228723073 in words is "twenty-two billion, two hundred twenty-eight million, seven hundred twenty-three thousand, seventy-three".