222401256604643 has 2 divisors, whose sum is σ = 222401256604644. Its totient is φ = 222401256604642.

The previous prime is 222401256604627. The next prime is 222401256604669. The reversal of 222401256604643 is 346406652104222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222401256604643 - 2⁴ = 222401256604627 is a prime.

It is not a weakly prime, because it can be changed into another prime (222401256604603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111200628302321 + 111200628302322.

It is an arithmetic number, because the mean of its divisors is an integer number (111200628302322).

Almost surely, 2^{222401256604643} is an apocalyptic number.

222401256604643 is a deficient number, since it is larger than the sum of its proper divisors (1).

222401256604643 is an equidigital number, since it uses as much as digits as its factorization.

222401256604643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 222401256604643 in words is "two hundred twenty-two trillion, four hundred one billion, two hundred fifty-six million, six hundred four thousand, six hundred forty-three".