1211052512 has 24 divisors (see below), whose sum is σ = 2401421400. Its totient is φ = 601167744.

The previous prime is 1211052497. The next prime is 1211052529. The reversal of 1211052512 is 2152501121.

It is a congruent 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, 131687 + ... + 140582.

It is an arithmetic number, because the mean of its divisors is an integer number (100059225).

Almost surely, 2^1211052512 is an apocalyptic number.

It is an amenable number.

1211052512 is a deficient number, since it is larger than the sum of its proper divisors (1190368888).

1211052512 is a wasteful number, since it uses less digits than its factorization.

1211052512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272418 (or 272410 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1211052512 is about 34800.1797696506. The cubic root of 1211052512 is about 1065.9111166852.

Adding to 1211052512 its reverse (2152501121), we get a palindrome (3363553633).

The spelling of 1211052512 in words is "one billion, two hundred eleven million, fifty-two thousand, five hundred twelve".