22231079 has 4 divisors (see below), whose sum is σ = 23941176. Its totient is φ = 20520984.

The previous prime is 22231067. The next prime is 22231147. The reversal of 22231079 is 97013222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22231079 - 2⁸ = 22230823 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 (22231049) 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, 855029 + ... + 855054.

It is an arithmetic number, because the mean of its divisors is an integer number (5985294).

Almost surely, 2^22231079 is an apocalyptic number.

22231079 is a deficient number, since it is larger than the sum of its proper divisors (1710097).

22231079 is a wasteful number, since it uses less digits than its factorization.

22231079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710096.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 22231079 is about 4714.9845174719. The cubic root of 22231079 is about 281.1815672847.

The spelling of 22231079 in words is "twenty-two million, two hundred thirty-one thousand, seventy-nine".