21223232113122 has 48 divisors (see below), whose sum is σ = 49521307825080. Its totient is φ = 6530168180736.

The previous prime is 21223232113091. The next prime is 21223232113159. The reversal of 21223232113122 is 22131123232212.

21223232113122 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 323 + 21 + 1 + 312 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11440230640281 + 9783001472841 = 3382341^2 + 3127779^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32113954 + ... + 32768162.

Almost surely, 2^{21223232113122} is an apocalyptic number.

21223232113122 is an abundant number, since it is smaller than the sum of its proper divisors (28298075711958).

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

21223232113122 is a wasteful number, since it uses less digits than its factorization.

21223232113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792867 (or 792864 counting only the distinct ones).

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

Adding to 21223232113122 its reverse (22131123232212), we get a palindrome (43354355345334).

The spelling of 21223232113122 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-two million, one hundred thirteen thousand, one hundred twenty-two".