1242012252 has 24 divisors (see below), whose sum is σ = 3120954256. Its totient is φ = 382157568.

The previous prime is 1242012223. The next prime is 1242012253. The reversal of 1242012252 is 2522102421.

It is a super-2 number, since 2×1242012252² = 3085188868236223008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242012253) 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, 3980653 + ... + 3980964.

Almost surely, 2^1242012252 is an apocalyptic number.

1242012252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242012252 is an abundant number, since it is smaller than the sum of its proper divisors (1878942004).

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

1242012252 is a wasteful number, since it uses less digits than its factorization.

1242012252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961637 (or 7961635 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1242012252 is about 35242.1941995671. The cubic root of 1242012252 is about 1074.9178958747.

Adding to 1242012252 its reverse (2522102421), we get a palindrome (3764114673).

The spelling of 1242012252 in words is "one billion, two hundred forty-two million, twelve thousand, two hundred fifty-two".