1512421212 has 24 divisors (see below), whose sum is σ = 3682417536. Its totient is φ = 482221168.

The previous prime is 1512421193. The next prime is 1512421219. The reversal of 1512421212 is 2121242151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1512421219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2739618 + ... + 2740169.

It is an arithmetic number, because the mean of its divisors is an integer number (153434064).

Almost surely, 2^1512421212 is an apocalyptic number.

1512421212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1512421212 is an abundant number, since it is smaller than the sum of its proper divisors (2169996324).

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

1512421212 is a wasteful number, since it uses less digits than its factorization.

1512421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479817 (or 5479815 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 1512421212 is about 38889.8600151762. The cubic root of 1512421212 is about 1147.8652803988.

Adding to 1512421212 its reverse (2121242151), we get a palindrome (3633663363).

The spelling of 1512421212 in words is "one billion, five hundred twelve million, four hundred twenty-one thousand, two hundred twelve".