21301252332 has 48 divisors (see below), whose sum is σ = 51532465152. Its totient is φ = 6841074240.

The previous prime is 21301252267. The next prime is 21301252339. The reversal of 21301252332 is 23325210312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21301252339) by changing a digit.

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, 41683 + ... + 210570.

It is an arithmetic number, because the mean of its divisors is an integer number (1073593024).

Almost surely, 2^21301252332 is an apocalyptic number.

It is an amenable number.

21301252332 is an abundant number, since it is smaller than the sum of its proper divisors (30231212820).

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

21301252332 is a wasteful number, since it uses less digits than its factorization.

21301252332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252518 (or 252516 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 21301252332 its reverse (23325210312), we get a palindrome (44626462644).

The spelling of 21301252332 in words is "twenty-one billion, three hundred one million, two hundred fifty-two thousand, three hundred thirty-two".