11101122321212 has 36 divisors (see below), whose sum is σ = 24404120151600. Its totient is φ = 4325112591360.

The previous prime is 11101122321197. The next prime is 11101122321229. The reversal of 11101122321212 is 21212322110111.

It is a super-2 number, since 2×11101122321212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1638296837 + ... + 1638303612.

Almost surely, 2^{11101122321212} is an apocalyptic number.

It is an amenable number.

11101122321212 is an abundant number, since it is smaller than the sum of its proper divisors (13302997830388).

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

11101122321212 is a wasteful number, since it uses less digits than its factorization.

11101122321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276600482 (or 3276600469 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11101122321212 its reverse (21212322110111), we get a palindrome (32313444431323).

The spelling of 11101122321212 in words is "eleven trillion, one hundred one billion, one hundred twenty-two million, three hundred twenty-one thousand, two hundred twelve".