222001200012281 has 2 divisors, whose sum is σ = 222001200012282. Its totient is φ = 222001200012280.

The previous prime is 222001200012199. The next prime is 222001200012287. The reversal of 222001200012281 is 182210002100222.

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., 213506423435881 + 8494776576400 = 14611859^2 + 2914580^2 .

It is a cyclic number.

It is not a de Polignac number, because 222001200012281 - 2³⁰ = 222000126270457 is a prime.

It is a super-2 number, since 2×222001200012281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222001200012287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000600006140 + 111000600006141.

It is an arithmetic number, because the mean of its divisors is an integer number (111000600006141).

Almost surely, 2^{222001200012281} is an apocalyptic number.

It is an amenable number.

222001200012281 is a deficient number, since it is larger than the sum of its proper divisors (1).

222001200012281 is an equidigital number, since it uses as much as digits as its factorization.

222001200012281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 222001200012281 in words is "two hundred twenty-two trillion, one billion, two hundred million, twelve thousand, two hundred eighty-one".