102468527221 has 2 divisors, whose sum is σ = 102468527222. Its totient is φ = 102468527220.

The previous prime is 102468527167. The next prime is 102468527233. The reversal of 102468527221 is 122725864201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52388800996 + 50079726225 = 228886^2 + 223785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102468527221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102468527281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51234263610 + 51234263611.

It is an arithmetic number, because the mean of its divisors is an integer number (51234263611).

Almost surely, 2^102468527221 is an apocalyptic number.

It is an amenable number.

102468527221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102468527221 is an equidigital number, since it uses as much as digits as its factorization.

102468527221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 102468527221 in words is "one hundred two billion, four hundred sixty-eight million, five hundred twenty-seven thousand, two hundred twenty-one".