1121212476 has 24 divisors (see below), whose sum is σ = 2906847440. Its totient is φ = 373737456.

The previous prime is 1121212457. The next prime is 1121212489. The reversal of 1121212476 is 6742121211.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 5190691 + ... + 5190906.

Almost surely, 2^1121212476 is an apocalyptic number.

It is an amenable number.

1121212476 is an abundant number, since it is smaller than the sum of its proper divisors (1785634964).

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

1121212476 is a wasteful number, since it uses less digits than its factorization.

1121212476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10381610 (or 10381602 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 1121212476 is about 33484.5109864248. The cubic root of 1121212476 is about 1038.8734337021.

Adding to 1121212476 its reverse (6742121211), we get a palindrome (7863333687).

The spelling of 1121212476 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, four hundred seventy-six".