1527121212 has 48 divisors (see below), whose sum is σ = 3605048832. Its totient is φ = 503092800.

The previous prime is 1527121207. The next prime is 1527121213. The reversal of 1527121212 is 2121217251.

It is a happy number.

It is a super-2 number, since 2×1527121212² = 4664198392280697888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1527121213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1171353 + ... + 1172655.

It is an arithmetic number, because the mean of its divisors is an integer number (75105184).

Almost surely, 2^1527121212 is an apocalyptic number.

1527121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1527121212 is an abundant number, since it is smaller than the sum of its proper divisors (2077927620).

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

1527121212 is a wasteful number, since it uses less digits than its factorization.

1527121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378 (or 2376 counting only the distinct ones).

The product of its digits is 560, while the sum is 24.

The square root of 1527121212 is about 39078.3982783327. The cubic root of 1527121212 is about 1151.5721941834.

Adding to 1527121212 its reverse (2121217251), we get a palindrome (3648338463).

The spelling of 1527121212 in words is "one billion, five hundred twenty-seven million, one hundred twenty-one thousand, two hundred twelve".