22223158 has 4 divisors (see below), whose sum is σ = 33334740. Its totient is φ = 11111578.

The previous prime is 22223147. The next prime is 22223161. The reversal of 22223158 is 85132222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555788 + ... + 5555791.

It is an arithmetic number, because the mean of its divisors is an integer number (8333685).

Almost surely, 2^22223158 is an apocalyptic number.

22223158 is a deficient number, since it is larger than the sum of its proper divisors (11111582).

22223158 is a wasteful number, since it uses less digits than its factorization.

22223158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111581.

The product of its digits is 1920, while the sum is 25.

The square root of 22223158 is about 4714.1444610873. The cubic root of 22223158 is about 281.1481680396.

The spelling of 22223158 in words is "twenty-two million, two hundred twenty-three thousand, one hundred fifty-eight".