1222525508 has 12 divisors (see below), whose sum is σ = 2213192940. Its totient is φ = 590184672.

The previous prime is 1222525459. The next prime is 1222525541. The reversal of 1222525508 is 8055252221.

It can be written as a sum of positive squares in 2 ways, for example, as 393546244 + 828979264 = 19838^2 + 28792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5269391 + ... + 5269622.

It is an arithmetic number, because the mean of its divisors is an integer number (184432745).

Almost surely, 2^1222525508 is an apocalyptic number.

It is an amenable number.

1222525508 is a deficient number, since it is larger than the sum of its proper divisors (990667432).

1222525508 is a wasteful number, since it uses less digits than its factorization.

1222525508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10539046 (or 10539044 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 1222525508 is about 34964.6322445983. The cubic root of 1222525508 is about 1069.2665390069.

Adding to 1222525508 its reverse (8055252221), we get a palindrome (9277777729).

The spelling of 1222525508 in words is "one billion, two hundred twenty-two million, five hundred twenty-five thousand, five hundred eight".