11122012156 has 24 divisors (see below), whose sum is σ = 19720406720. Its totient is φ = 5487685632.

The previous prime is 11122012141. The next prime is 11122012157. The reversal of 11122012156 is 65121022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122012157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659380 + ... + 676036.

Almost surely, 2^11122012156 is an apocalyptic number.

It is an amenable number.

11122012156 is a deficient number, since it is larger than the sum of its proper divisors (8598394564).

11122012156 is a wasteful number, since it uses less digits than its factorization.

11122012156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18853 (or 18851 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 11122012156 its reverse (65121022111), we get a palindrome (76243034267).

The spelling of 11122012156 in words is "eleven billion, one hundred twenty-two million, twelve thousand, one hundred fifty-six".