11233012212 has 36 divisors (see below), whose sum is σ = 28753990720. Its totient is φ = 3696939792.

The previous prime is 11233012181. The next prime is 11233012247. The reversal of 11233012212 is 21221033211.

11233012212 is a `hidden beast` number, since 112 + 330 + 1 + 221 + 2 = 666.

11233012212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11233012212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1972018 + ... + 1977705.

Almost surely, 2^11233012212 is an apocalyptic number.

11233012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11233012212 is an abundant number, since it is smaller than the sum of its proper divisors (17520978508).

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

11233012212 is a wasteful number, since it uses less digits than its factorization.

11233012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949812 (or 3949807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11233012212 its reverse (21221033211), we get a palindrome (32454045423).

The spelling of 11233012212 in words is "eleven billion, two hundred thirty-three million, twelve thousand, two hundred twelve".