222409665851 has 2 divisors, whose sum is σ = 222409665852. Its totient is φ = 222409665850.

The previous prime is 222409665847. The next prime is 222409665859. The reversal of 222409665851 is 158566904222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222409665851 - 2² = 222409665847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222409665851.

It is not a weakly prime, because it can be changed into another prime (222409665859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111204832925 + 111204832926.

It is an arithmetic number, because the mean of its divisors is an integer number (111204832926).

Almost surely, 2^222409665851 is an apocalyptic number.

222409665851 is a deficient number, since it is larger than the sum of its proper divisors (1).

222409665851 is an equidigital number, since it uses as much as digits as its factorization.

222409665851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 222409665851 in words is "two hundred twenty-two billion, four hundred nine million, six hundred sixty-five thousand, eight hundred fifty-one".