102253041221 has 2 divisors, whose sum is σ = 102253041222. Its totient is φ = 102253041220.

The previous prime is 102253041211. The next prime is 102253041251. The reversal of 102253041221 is 122140352201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96401556196 + 5851485025 = 310486^2 + 76495^2 .

It is a cyclic number.

It is not a de Polignac number, because 102253041221 - 2⁶ = 102253041157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102253041211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51126520610 + 51126520611.

It is an arithmetic number, because the mean of its divisors is an integer number (51126520611).

Almost surely, 2^102253041221 is an apocalyptic number.

It is an amenable number.

102253041221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102253041221 is an equidigital number, since it uses as much as digits as its factorization.

102253041221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 102253041221 its reverse (122140352201), we get a palindrome (224393393422).

The spelling of 102253041221 in words is "one hundred two billion, two hundred fifty-three million, forty-one thousand, two hundred twenty-one".