21232240152132 has 48 divisors (see below), whose sum is σ = 50998917295872. Its totient is φ = 6870154775040.

The previous prime is 21232240152127. The next prime is 21232240152161. The reversal of 21232240152132 is 23125104223212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21232240152132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55284693 + ... + 55667420.

It is an arithmetic number, because the mean of its divisors is an integer number (1062477443664).

Almost surely, 2^{21232240152132} is an apocalyptic number.

It is an amenable number.

21232240152132 is an abundant number, since it is smaller than the sum of its proper divisors (29766677143740).

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

21232240152132 is a wasteful number, since it uses less digits than its factorization.

21232240152132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110952588 (or 110952586 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 21232240152132 its reverse (23125104223212), we get a palindrome (44357344375344).

The spelling of 21232240152132 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred forty million, one hundred fifty-two thousand, one hundred thirty-two".