102112221149 has 2 divisors, whose sum is σ = 102112221150. Its totient is φ = 102112221148.

The previous prime is 102112221089. The next prime is 102112221173. The reversal of 102112221149 is 941122211201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97875122500 + 4237098649 = 312850^2 + 65093^2 .

It is a cyclic number.

It is not a de Polignac number, because 102112221149 - 2²⁰ = 102111172573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102112281149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056110574 + 51056110575.

It is an arithmetic number, because the mean of its divisors is an integer number (51056110575).

Almost surely, 2^102112221149 is an apocalyptic number.

It is an amenable number.

102112221149 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112221149 is an equidigital number, since it uses as much as digits as its factorization.

102112221149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 102112221149 in words is "one hundred two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred forty-nine".