102202120221 has 16 divisors (see below), whose sum is σ = 143931157440. Its totient is φ = 64328394240.

The previous prime is 102202120213. The next prime is 102202120289. The reversal of 102202120221 is 122021202201.

It is not a de Polignac number, because 102202120221 - 2³ = 102202120213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102202120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202120121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3043060 + ... + 3076461.

It is an arithmetic number, because the mean of its divisors is an integer number (8995697340).

Almost surely, 2^102202120221 is an apocalyptic number.

It is an amenable number.

102202120221 is a deficient number, since it is larger than the sum of its proper divisors (41729037219).

102202120221 is a wasteful number, since it uses less digits than its factorization.

102202120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119836.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102202120221 its reverse (122021202201), we get a palindrome (224223322422).

The spelling of 102202120221 in words is "one hundred two billion, two hundred two million, one hundred twenty thousand, two hundred twenty-one".