1252133212 has 48 divisors (see below), whose sum is σ = 2520403200. Its totient is φ = 538306560.

The previous prime is 1252133177. The next prime is 1252133213. The reversal of 1252133212 is 2123312521.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252133213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887964 + ... + 889372.

It is an arithmetic number, because the mean of its divisors is an integer number (52508400).

Almost surely, 2^1252133212 is an apocalyptic number.

It is an amenable number.

1252133212 is an abundant number, since it is smaller than the sum of its proper divisors (1268269988).

1252133212 is a wasteful number, since it uses less digits than its factorization.

1252133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2504 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1252133212 is about 35385.4943726946. The cubic root of 1252133212 is about 1077.8297788855.

Adding to 1252133212 its reverse (2123312521), we get a palindrome (3375445733).

The spelling of 1252133212 in words is "one billion, two hundred fifty-two million, one hundred thirty-three thousand, two hundred twelve".