1252866222 has 24 divisors (see below), whose sum is σ = 2718603264. Its totient is φ = 416997504.

The previous prime is 1252866217. The next prime is 1252866229. The reversal of 1252866222 is 2226682521.

1252866222 is a `hidden beast` number, since 1 + 2 + 5 + 28 + 6 + 622 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252866229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39598 + ... + 63825.

It is an arithmetic number, because the mean of its divisors is an integer number (113275136).

Almost surely, 2^1252866222 is an apocalyptic number.

1252866222 is an abundant number, since it is smaller than the sum of its proper divisors (1465737042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252866222 is a wasteful number, since it uses less digits than its factorization.

1252866222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104104 (or 104101 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 1252866222 is about 35395.8503500057. The cubic root of 1252866222 is about 1078.0400615932.

The spelling of 1252866222 in words is "one billion, two hundred fifty-two million, eight hundred sixty-six thousand, two hundred twenty-two".