11331233212 has 48 divisors (see below), whose sum is σ = 22246470400. Its totient is φ = 5014586880.

The previous prime is 11331233201. The next prime is 11331233213. The reversal of 11331233212 is 21233213311.

It is a super-2 number, since 2×11331233212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331233213) 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, 143464 + ... + 207952.

Almost surely, 2^11331233212 is an apocalyptic number.

It is an amenable number.

11331233212 is a deficient number, since it is larger than the sum of its proper divisors (10915237188).

11331233212 is a wasteful number, since it uses less digits than its factorization.

11331233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64646 (or 64644 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 11331233212 its reverse (21233213311), we get a palindrome (32564446523).

The spelling of 11331233212 in words is "eleven billion, three hundred thirty-one million, two hundred thirty-three thousand, two hundred twelve".