1252357222 has 16 divisors (see below), whose sum is σ = 2063381760. Its totient is φ = 567429192.

The previous prime is 1252357219. The next prime is 1252357229. The reversal of 1252357222 is 2227532521.

It is a happy number.

It is a super-2 number, since 2×1252357222² = 3136797222991114568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252357229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715578 + ... + 717325.

It is an arithmetic number, because the mean of its divisors is an integer number (128961360).

Almost surely, 2^1252357222 is an apocalyptic number.

1252357222 is a deficient number, since it is larger than the sum of its proper divisors (811024538).

1252357222 is a wasteful number, since it uses less digits than its factorization.

1252357222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432947.

The product of its digits is 16800, while the sum is 31.

The square root of 1252357222 is about 35388.6595112050. The cubic root of 1252357222 is about 1077.8940506018.

Adding to 1252357222 its reverse (2227532521), we get a palindrome (3479889743).

The spelling of 1252357222 in words is "one billion, two hundred fifty-two million, three hundred fifty-seven thousand, two hundred twenty-two".