102222211030991 has 2 divisors, whose sum is σ = 102222211030992. Its totient is φ = 102222211030990.

The previous prime is 102222211030949. The next prime is 102222211031021. The reversal of 102222211030991 is 199030112222201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102222211030991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102222211030691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111105515495 + 51111105515496.

It is an arithmetic number, because the mean of its divisors is an integer number (51111105515496).

Almost surely, 2^{102222211030991} is an apocalyptic number.

102222211030991 is a deficient number, since it is larger than the sum of its proper divisors (1).

102222211030991 is an equidigital number, since it uses as much as digits as its factorization.

102222211030991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 102222211030991 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred eleven million, thirty thousand, nine hundred ninety-one".