222002233261 has 2 divisors, whose sum is σ = 222002233262. Its totient is φ = 222002233260.

The previous prime is 222002233223. The next prime is 222002233301. The reversal of 222002233261 is 162332200222.

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., 175712710761 + 46289522500 = 419181^2 + 215150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222002233261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002933261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001116630 + 111001116631.

It is an arithmetic number, because the mean of its divisors is an integer number (111001116631).

Almost surely, 2^222002233261 is an apocalyptic number.

It is an amenable number.

222002233261 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002233261 is an equidigital number, since it uses as much as digits as its factorization.

222002233261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 222002233261 its reverse (162332200222), we get a palindrome (384334433483).

The spelling of 222002233261 in words is "two hundred twenty-two billion, two million, two hundred thirty-three thousand, two hundred sixty-one".