22256555565222 has 32 divisors (see below), whose sum is σ = 53955286220160. Its totient is φ = 6744410777160.

The previous prime is 22256555565217. The next prime is 22256555565227.

22256555565222 is a `hidden beast` number, since 2 + 2 + 2 + 5 + 6 + 5 + 55 + 565 + 2 + 22 = 666.

22256555565222 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (22256555565217) and next prime (22256555565227).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256555565227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18734473788 + ... + 18734474975.

It is an arithmetic number, because the mean of its divisors is an integer number (1686102694380).

Almost surely, 2^{22256555565222} is an apocalyptic number.

22256555565222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22256555565222 is an abundant number, since it is smaller than the sum of its proper divisors (31698730654938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22256555565222 is a wasteful number, since it uses less digits than its factorization.

22256555565222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37468948785 (or 37468948779 counting only the distinct ones).

The product of its digits is 36000000, while the sum is 54.

The spelling of 22256555565222 in words is "twenty-two trillion, two hundred fifty-six billion, five hundred fifty-five million, five hundred sixty-five thousand, two hundred twenty-two".