11231232232212 has 42 divisors (see below), whose sum is σ = 29468504057258. Its totient is φ = 3743744076432.

The previous prime is 11231232232211. The next prime is 11231232232249. The reversal of 11231232232212 is 21223223213211.

11231232232212 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 1 + 2 + 322 + 322 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10795719347856 + 435512884356 = 3285684^2 + 659934^2 .

It is a super-2 number, since 2×11231232232212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231232232211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1925791363 + ... + 1925797194.

Almost surely, 2^{11231232232212} is an apocalyptic number.

11231232232212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11231232232212 is an abundant number, since it is smaller than the sum of its proper divisors (18237271825046).

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

11231232232212 is an equidigital number, since it uses as much as digits as its factorization.

11231232232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851588579 (or 3851588562 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 11231232232212 its reverse (21223223213211), we get a palindrome (32454455445423).

The spelling of 11231232232212 in words is "eleven trillion, two hundred thirty-one billion, two hundred thirty-two million, two hundred thirty-two thousand, two hundred twelve".