11122531212 has 48 divisors (see below), whose sum is σ = 27994319360. Its totient is φ = 3416758848.

The previous prime is 11122531207. The next prime is 11122531219. The reversal of 11122531212 is 21213522111.

It is not an unprimeable number, because it can be changed into a prime (11122531219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38973 + ... + 154155.

Almost surely, 2^11122531212 is an apocalyptic number.

11122531212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11122531212 is an abundant number, since it is smaller than the sum of its proper divisors (16871788148).

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

11122531212 is a wasteful number, since it uses less digits than its factorization.

11122531212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115822 (or 115820 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

The spelling of 11122531212 in words is "eleven billion, one hundred twenty-two million, five hundred thirty-one thousand, two hundred twelve".