1122557812 has 6 divisors (see below), whose sum is σ = 1964476178. Its totient is φ = 561278904.

The previous prime is 1122557773. The next prime is 1122557857. The reversal of 1122557812 is 2187552211.

It can be written as a sum of positive squares in only one way, i.e., 919666276 + 202891536 = 30326^2 + 14244^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 140319723 + ... + 140319730.

Almost surely, 2^1122557812 is an apocalyptic number.

It is an amenable number.

1122557812 is a deficient number, since it is larger than the sum of its proper divisors (841918366).

1122557812 is a wasteful number, since it uses less digits than its factorization.

1122557812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280639457 (or 280639455 counting only the distinct ones).

The product of its digits is 11200, while the sum is 34.

The square root of 1122557812 is about 33504.5938939722. The cubic root of 1122557812 is about 1039.2887802512.

The spelling of 1122557812 in words is "one billion, one hundred twenty-two million, five hundred fifty-seven thousand, eight hundred twelve".