222002223181 has 2 divisors, whose sum is σ = 222002223182. Its totient is φ = 222002223180.

The previous prime is 222002223137. The next prime is 222002223197. The reversal of 222002223181 is 181322200222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164538941956 + 57463281225 = 405634^2 + 239715^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002223181 - 2²⁷ = 221868005453 is a prime.

It is a super-2 number, since 2×222002223181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002223101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001111590 + 111001111591.

It is an arithmetic number, because the mean of its divisors is an integer number (111001111591).

Almost surely, 2^222002223181 is an apocalyptic number.

It is an amenable number.

222002223181 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002223181 is an equidigital number, since it uses as much as digits as its factorization.

222002223181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 222002223181 in words is "two hundred twenty-two billion, two million, two hundred twenty-three thousand, one hundred eighty-one".