222898660991 has 2 divisors, whose sum is σ = 222898660992. Its totient is φ = 222898660990.

The previous prime is 222898660981. The next prime is 222898661021. The reversal of 222898660991 is 199066898222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222898660991 - 2¹⁴ = 222898644607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222898660931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111449330495 + 111449330496.

It is an arithmetic number, because the mean of its divisors is an integer number (111449330496).

Almost surely, 2^222898660991 is an apocalyptic number.

222898660991 is a deficient number, since it is larger than the sum of its proper divisors (1).

222898660991 is an equidigital number, since it uses as much as digits as its factorization.

222898660991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13436928, while the sum is 62.

The spelling of 222898660991 in words is "two hundred twenty-two billion, eight hundred ninety-eight million, six hundred sixty thousand, nine hundred ninety-one".