222221012012281 has 2 divisors, whose sum is σ = 222221012012282. Its totient is φ = 222221012012280.

The previous prime is 222221012012201. The next prime is 222221012012299. The reversal of 222221012012281 is 182210210122222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216417051654400 + 5803960357881 = 14711120^2 + 2409141^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221012012281 - 2¹¹ = 222221012010233 is a prime.

It is a super-2 number, since 2×222221012012281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222221012012201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110506006140 + 111110506006141.

It is an arithmetic number, because the mean of its divisors is an integer number (111110506006141).

Almost surely, 2^{222221012012281} is an apocalyptic number.

It is an amenable number.

222221012012281 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221012012281 is an equidigital number, since it uses as much as digits as its factorization.

222221012012281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 28.

The spelling of 222221012012281 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twelve million, twelve thousand, two hundred eighty-one".