22255211 has 4 divisors (see below), whose sum is σ = 24278424. Its totient is φ = 20232000.

The previous prime is 22255199. The next prime is 22255229. The reversal of 22255211 is 11255222.

It is a happy number.

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 22255211 - 2⁶ = 22255147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22255271) 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, 1011590 + ... + 1011611.

It is an arithmetic number, because the mean of its divisors is an integer number (6069606).

Almost surely, 2^22255211 is an apocalyptic number.

22255211 is a deficient number, since it is larger than the sum of its proper divisors (2023213).

22255211 is a wasteful number, since it uses less digits than its factorization.

22255211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023212.

The product of its digits is 400, while the sum is 20.

The square root of 22255211 is about 4717.5428985861. The cubic root of 22255211 is about 281.2832720473.

The spelling of 22255211 in words is "twenty-two million, two hundred fifty-five thousand, two hundred eleven".