1521011212 has 12 divisors (see below), whose sum is σ = 3042022480. Its totient is φ = 651861936.

The previous prime is 1521011201. The next prime is 1521011243. The reversal of 1521011212 is 2121101251.

1521011212 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27160887 + ... + 27160942.

Almost surely, 2^1521011212 is an apocalyptic number.

It is an amenable number.

1521011212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1521011212 is a wasteful number, since it uses less digits than its factorization.

1521011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54321840 (or 54321838 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1521011212 is about 39000.1437433248. The cubic root of 1521011212 is about 1150.0343309222.

Adding to 1521011212 its reverse (2121101251), we get a palindrome (3642112463).

The spelling of 1521011212 in words is "one billion, five hundred twenty-one million, eleven thousand, two hundred twelve".