102220325 has 6 divisors (see below), whose sum is σ = 126753234. Its totient is φ = 81776240.

The previous prime is 102220297. The next prime is 102220343. The reversal of 102220325 is 523022201.

It can be written as a sum of positive squares in 3 ways, for example, as 3833764 + 98386561 = 1958^2 + 9919^2 .

It is not a de Polignac number, because 102220325 - 2¹⁰ = 102219301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2044382 + ... + 2044431.

It is an arithmetic number, because the mean of its divisors is an integer number (21125539).

Almost surely, 2^102220325 is an apocalyptic number.

It is an amenable number.

102220325 is a deficient number, since it is larger than the sum of its proper divisors (24532909).

102220325 is an equidigital number, since it uses as much as digits as its factorization.

102220325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088823 (or 4088818 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 102220325 is about 10110.4067672869. The cubic root of 102220325 is about 467.5690462042.

Adding to 102220325 its reverse (523022201), we get a palindrome (625242526).

The spelling of 102220325 in words is "one hundred two million, two hundred twenty thousand, three hundred twenty-five".