102221280089689 has 2 divisors, whose sum is σ = 102221280089690. Its totient is φ = 102221280089688.

The previous prime is 102221280089639. The next prime is 102221280089693. The reversal of 102221280089689 is 986980082122201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96194255089689 + 6027025000000 = 9807867^2 + 2455000^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221280089689 - 2⁷ = 102221280089561 is a prime.

It is not a weakly prime, because it can be changed into another prime (102221280089639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110640044844 + 51110640044845.

It is an arithmetic number, because the mean of its divisors is an integer number (51110640044845).

Almost surely, 2^{102221280089689} is an apocalyptic number.

It is an amenable number.

102221280089689 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221280089689 is an equidigital number, since it uses as much as digits as its factorization.

102221280089689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 102221280089689 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred eighty million, eighty-nine thousand, six hundred eighty-nine".