102322120221 has 12 divisors (see below), whose sum is σ = 147808632348. Its totient is φ = 68210124864.

The previous prime is 102322120027. The next prime is 102322120223. The reversal of 102322120221 is 122021223201.

102322120221 is a `hidden beast` number, since 1 + 0 + 2 + 322 + 120 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 99862952121 + 2459168100 = 316011^2 + 49590^2 .

It is not a de Polignac number, because 102322120221 - 2²² = 102317925917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102322120194 and 102322120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102322120223) 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 in 11 ways as a sum of consecutive naturals, for example, 242160 + ... + 513113.

It is an arithmetic number, because the mean of its divisors is an integer number (12317386029).

Almost surely, 2^102322120221 is an apocalyptic number.

It is an amenable number.

102322120221 is a deficient number, since it is larger than the sum of its proper divisors (45486512127).

102322120221 is a wasteful number, since it uses less digits than its factorization.

102322120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770332 (or 770329 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102322120221 its reverse (122021223201), we get a palindrome (224343343422).

The spelling of 102322120221 in words is "one hundred two billion, three hundred twenty-two million, one hundred twenty thousand, two hundred twenty-one".