222540630281 has 2 divisors, whose sum is σ = 222540630282. Its totient is φ = 222540630280.

The previous prime is 222540630259. The next prime is 222540630401. The reversal of 222540630281 is 182036045222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182995728400 + 39544901881 = 427780^2 + 198859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222540630281 is a prime.

It is a super-2 number, since 2×222540630281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222540635281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111270315140 + 111270315141.

It is an arithmetic number, because the mean of its divisors is an integer number (111270315141).

Almost surely, 2^222540630281 is an apocalyptic number.

It is an amenable number.

222540630281 is a deficient number, since it is larger than the sum of its proper divisors (1).

222540630281 is an equidigital number, since it uses as much as digits as its factorization.

222540630281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 222540630281 in words is "two hundred twenty-two billion, five hundred forty million, six hundred thirty thousand, two hundred eighty-one".