21331012322232 has 32 divisors (see below), whose sum is σ = 59252812006800. Its totient is φ = 7110337440672.

The previous prime is 21331012322227. The next prime is 21331012322233. The reversal of 21331012322232 is 23222321013312.

21331012322232 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 101 + 2 + 322 + 232 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 21331012322196 and 21331012322205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21331012322233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49377343123 + ... + 49377343554.

Almost surely, 2^{21331012322232} is an apocalyptic number.

It is an amenable number.

21331012322232 is an abundant number, since it is smaller than the sum of its proper divisors (37921799684568).

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

21331012322232 is a wasteful number, since it uses less digits than its factorization.

21331012322232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98754686692 (or 98754686682 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21331012322232 its reverse (23222321013312), we get a palindrome (44553333335544).

The spelling of 21331012322232 in words is "twenty-one trillion, three hundred thirty-one billion, twelve million, three hundred twenty-two thousand, two hundred thirty-two".