22212159 has 8 divisors (see below), whose sum is σ = 31175040. Its totient is φ = 14028696.

The previous prime is 22212133. The next prime is 22212187. The reversal of 22212159 is 95121222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22212159 - 2¹² = 22208063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194787 + ... + 194900.

It is an arithmetic number, because the mean of its divisors is an integer number (3896880).

Almost surely, 2^22212159 is an apocalyptic number.

22212159 is a deficient number, since it is larger than the sum of its proper divisors (8962881).

22212159 is a wasteful number, since it uses less digits than its factorization.

22212159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389709.

The product of its digits is 720, while the sum is 24.

The square root of 22212159 is about 4712.9777211440. The cubic root of 22212159 is about 281.1017771080.

The spelling of 22212159 in words is "twenty-two million, two hundred twelve thousand, one hundred fifty-nine".