102022010221 has 2 divisors, whose sum is σ = 102022010222. Its totient is φ = 102022010220.

The previous prime is 102022010203. The next prime is 102022010261. The reversal of 102022010221 is 122010220201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100797360196 + 1224650025 = 317486^2 + 34995^2 .

It is an emirp because it is prime and its reverse (122010220201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102022010221 - 2⁹ = 102022009709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102022010261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51011005110 + 51011005111.

It is an arithmetic number, because the mean of its divisors is an integer number (51011005111).

Almost surely, 2^102022010221 is an apocalyptic number.

It is an amenable number.

102022010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102022010221 is an equidigital number, since it uses as much as digits as its factorization.

102022010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102022010221 its reverse (122010220201), we get a palindrome (224032230422).

The spelling of 102022010221 in words is "one hundred two billion, twenty-two million, ten thousand, two hundred twenty-one".