1252000012 has 12 divisors (see below), whose sum is σ = 2207726136. Its totient is φ = 621221120.

The previous prime is 1251999967. The next prime is 1252000027. The reversal of 1252000012 is 2100002521.

It is a junction number, because it is equal to n+sod(n) for n = 1251999956 and 1252000001.

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, 1194133 + ... + 1195180.

It is an arithmetic number, because the mean of its divisors is an integer number (183977178).

Almost surely, 2^1252000012 is an apocalyptic number.

It is an amenable number.

1252000012 is a deficient number, since it is larger than the sum of its proper divisors (955726124).

1252000012 is a wasteful number, since it uses less digits than its factorization.

1252000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389448 (or 2389446 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1252000012 is about 35383.6121954783. The cubic root of 1252000012 is about 1077.7915582403.

Adding to 1252000012 its reverse (2100002521), we get a palindrome (3352002533).

The spelling of 1252000012 in words is "one billion, two hundred fifty-two million, twelve", and thus it is an aban number.