222365025181 has 32 divisors (see below), whose sum is σ = 251790184800. Its totient is φ = 194954833920.

The previous prime is 222365025151. The next prime is 222365025209. The reversal of 222365025181 is 181520563222.

It can be written as a sum of positive squares in 16 ways, for example, as 13342329081 + 209022696100 = 115509^2 + 457190^2 .

It is not a de Polignac number, because 222365025181 - 2⁷ = 222365025053 is a prime.

It is a super-2 number, since 2×222365025181² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222365025181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222365025121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6593121 + ... + 6626761.

It is an arithmetic number, because the mean of its divisors is an integer number (7868443275).

Almost surely, 2^222365025181 is an apocalyptic number.

It is an amenable number.

222365025181 is a deficient number, since it is larger than the sum of its proper divisors (29425159619).

222365025181 is a wasteful number, since it uses less digits than its factorization.

222365025181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33969.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 222365025181 in words is "two hundred twenty-two billion, three hundred sixty-five million, twenty-five thousand, one hundred eighty-one".