1121212624 has 20 divisors (see below), whose sum is σ = 2482685344. Its totient is φ = 480519648.

The previous prime is 1121212601. The next prime is 1121212627. The reversal of 1121212624 is 4262121211.

It is a junction number, because it is equal to n+sod(n) for n = 1121212595 and 1121212604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121212627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005302 + ... + 5005525.

Almost surely, 2^1121212624 is an apocalyptic number.

1121212624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121212624 is an abundant number, since it is smaller than the sum of its proper divisors (1361472720).

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

1121212624 is a wasteful number, since it uses less digits than its factorization.

1121212624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010842 (or 10010836 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 1121212624 is about 33484.5131964017. The cubic root of 1121212624 is about 1038.8734794126.

Adding to 1121212624 its reverse (4262121211), we get a palindrome (5383333835).

The spelling of 1121212624 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, six hundred twenty-four".