11231221021112 has 32 divisors (see below), whose sum is σ = 22205301243600. Its totient is φ = 5310831826944.

The previous prime is 11231221021099. The next prime is 11231221021127. The reversal of 11231221021112 is 21112012213211.

It is a super-2 number, since 2×11231221021112² (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 7 ways as a sum of consecutive naturals, for example, 63941423 + ... + 64116830.

Almost surely, 2^{11231221021112} is an apocalyptic number.

It is an amenable number.

11231221021112 is a deficient number, since it is larger than the sum of its proper divisors (10974080222488).

11231221021112 is a wasteful number, since it uses less digits than its factorization.

11231221021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128058855 (or 128058851 counting only the distinct ones).

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

Adding to 11231221021112 its reverse (21112012213211), we get a palindrome (32343233234323).

The spelling of 11231221021112 in words is "eleven trillion, two hundred thirty-one billion, two hundred twenty-one million, twenty-one thousand, one hundred twelve".