102221023213 has 2 divisors, whose sum is σ = 102221023214. Its totient is φ = 102221023212.

The previous prime is 102221023211. The next prime is 102221023231. The reversal of 102221023213 is 312320122201.

Together with next prime (102221023231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94813494724 + 7407528489 = 307918^2 + 86067^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221023213 - 2¹ = 102221023211 is a prime.

Together with 102221023211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102221023211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110511606 + 51110511607.

It is an arithmetic number, because the mean of its divisors is an integer number (51110511607).

Almost surely, 2^102221023213 is an apocalyptic number.

It is an amenable number.

102221023213 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221023213 is an equidigital number, since it uses as much as digits as its factorization.

102221023213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102221023213 its reverse (312320122201), we get a palindrome (414541145414).

The spelling of 102221023213 in words is "one hundred two billion, two hundred twenty-one million, twenty-three thousand, two hundred thirteen".