102206522 has 24 divisors (see below), whose sum is σ = 172640916. Its totient is φ = 45320000.

The previous prime is 102206519. The next prime is 102206539. The reversal of 102206522 is 225602201.

It can be written as a sum of positive squares in 2 ways, for example, as 102191881 + 14641 = 10109^2 + 121^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102206494 and 102206503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4772 + ... + 15072.

Almost surely, 2^102206522 is an apocalyptic number.

102206522 is a deficient number, since it is larger than the sum of its proper divisors (70434394).

102206522 is a wasteful number, since it uses less digits than its factorization.

102206522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366 (or 10355 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102206522 is about 10109.7241307565. The cubic root of 102206522 is about 467.5479996852.

Adding to 102206522 its reverse (225602201), we get a palindrome (327808723).

The spelling of 102206522 in words is "one hundred two million, two hundred six thousand, five hundred twenty-two".