102412023221 has 2 divisors, whose sum is σ = 102412023222. Its totient is φ = 102412023220.

The previous prime is 102412023211. The next prime is 102412023251. The reversal of 102412023221 is 122320214201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82377036196 + 20034987025 = 287014^2 + 141545^2 .

It is a cyclic number.

It is not a de Polignac number, because 102412023221 - 2¹⁰ = 102412022197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102412023193 and 102412023202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102412023211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51206011610 + 51206011611.

It is an arithmetic number, because the mean of its divisors is an integer number (51206011611).

Almost surely, 2^102412023221 is an apocalyptic number.

It is an amenable number.

102412023221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102412023221 is an equidigital number, since it uses as much as digits as its factorization.

102412023221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102412023221 its reverse (122320214201), we get a palindrome (224732237422).

The spelling of 102412023221 in words is "one hundred two billion, four hundred twelve million, twenty-three thousand, two hundred twenty-one".