11155122212 has 96 divisors (see below), whose sum is σ = 22495656960. Its totient is φ = 4803402240.

The previous prime is 11155122197. The next prime is 11155122227. The reversal of 11155122212 is 21222155111.

It is an interprime number because it is at equal distance from previous prime (11155122197) and next prime (11155122227).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5039618 + ... + 5041830.

It is an arithmetic number, because the mean of its divisors is an integer number (234329760).

Almost surely, 2^11155122212 is an apocalyptic number.

It is an amenable number.

11155122212 is an abundant number, since it is smaller than the sum of its proper divisors (11340534748).

11155122212 is a wasteful number, since it uses less digits than its factorization.

11155122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373 (or 2371 counting only the distinct ones).

The product of its digits is 400, while the sum is 23.

Adding to 11155122212 its reverse (21222155111), we get a palindrome (32377277323).

The spelling of 11155122212 in words is "eleven billion, one hundred fifty-five million, one hundred twenty-two thousand, two hundred twelve".