102211221899 has 2 divisors, whose sum is σ = 102211221900. Its totient is φ = 102211221898.

The previous prime is 102211221877. The next prime is 102211221901. The reversal of 102211221899 is 998122112201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102211221899 is a prime.

Together with 102211221901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102211221799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105610949 + 51105610950.

It is an arithmetic number, because the mean of its divisors is an integer number (51105610950).

Almost surely, 2^102211221899 is an apocalyptic number.

102211221899 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211221899 is an equidigital number, since it uses as much as digits as its factorization.

102211221899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 38.

The spelling of 102211221899 in words is "one hundred two billion, two hundred eleven million, two hundred twenty-one thousand, eight hundred ninety-nine".