222002223257 has 2 divisors, whose sum is σ = 222002223258. Its totient is φ = 222002223256.

The previous prime is 222002223227. The next prime is 222002223277. The reversal of 222002223257 is 752322200222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216012082441 + 5990140816 = 464771^2 + 77396^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002223257 - 2¹² = 222002219161 is a prime.

It is not a weakly prime, because it can be changed into another prime (222002223217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001111628 + 111001111629.

It is an arithmetic number, because the mean of its divisors is an integer number (111001111629).

Almost surely, 2^222002223257 is an apocalyptic number.

It is an amenable number.

222002223257 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002223257 is an equidigital number, since it uses as much as digits as its factorization.

222002223257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 29.

Adding to 222002223257 its reverse (752322200222), we get a palindrome (974324423479).

The spelling of 222002223257 in words is "two hundred twenty-two billion, two million, two hundred twenty-three thousand, two hundred fifty-seven".