1222758825 has 24 divisors (see below), whose sum is σ = 2024804928. Its totient is φ = 651113280.

The previous prime is 1222758791. The next prime is 1222758827. The reversal of 1222758825 is 5288572221.

It is not a de Polignac number, because 1222758825 - 2²³ = 1214370217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222758827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36492 + ... + 61458.

It is an arithmetic number, because the mean of its divisors is an integer number (84366872).

Almost surely, 2^1222758825 is an apocalyptic number.

1222758825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222758825 is a deficient number, since it is larger than the sum of its proper divisors (802046103).

1222758825 is a wasteful number, since it uses less digits than its factorization.

1222758825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25633 (or 25628 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The square root of 1222758825 is about 34967.9685569522. The cubic root of 1222758825 is about 1069.3345572719.

The spelling of 1222758825 in words is "one billion, two hundred twenty-two million, seven hundred fifty-eight thousand, eight hundred twenty-five".