102022130221 has 6 divisors (see below), whose sum is σ = 112140027566. Its totient is φ = 92747391000.

The previous prime is 102022130159. The next prime is 102022130251. The reversal of 102022130221 is 122031220201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52722588996 + 49299541225 = 229614^2 + 222035^2 .

It is not a de Polignac number, because 102022130221 - 2³³ = 93432195629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102022130195 and 102022130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022130251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421578930 + ... + 421579171.

Almost surely, 2^102022130221 is an apocalyptic number.

102022130221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102022130221 is a deficient number, since it is larger than the sum of its proper divisors (10117897345).

102022130221 is an equidigital number, since it uses as much as digits as its factorization.

102022130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843158123 (or 843158112 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102022130221 its reverse (122031220201), we get a palindrome (224053350422).

The spelling of 102022130221 in words is "one hundred two billion, twenty-two million, one hundred thirty thousand, two hundred twenty-one".