22256123 has 2 divisors, whose sum is σ = 22256124. Its totient is φ = 22256122.

The previous prime is 22256099. The next prime is 22256189. The reversal of 22256123 is 32165222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22256123 - 2¹⁶ = 22190587 is a prime.

It is a super-2 number, since 2×22256123² = 990670021982258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22252123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128061 + 11128062.

It is an arithmetic number, because the mean of its divisors is an integer number (11128062).

Almost surely, 2^22256123 is an apocalyptic number.

22256123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22256123 is an equidigital number, since it uses as much as digits as its factorization.

22256123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 22256123 is about 4717.6395580841. The cubic root of 22256123 is about 281.2871142462.

Subtracting 22256123 from its reverse (32165222), we obtain a palindrome (9909099).

The spelling of 22256123 in words is "twenty-two million, two hundred fifty-six thousand, one hundred twenty-three".