21522532033 has 8 divisors (see below), whose sum is σ = 22267195200. Its totient is φ = 20778036048.

The previous prime is 21522532021. The next prime is 21522532051. The reversal of 21522532033 is 33023522512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21522532033 - 2²⁹ = 20985661121 is a prime.

It is a super-2 number, since 2×21522532033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21522531992 and 21522532010.

It is not an unprimeable number, because it can be changed into a prime (21522532063) 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, 256258 + ... + 329716.

It is an arithmetic number, because the mean of its divisors is an integer number (2783399400).

Almost surely, 2^21522532033 is an apocalyptic number.

It is an amenable number.

21522532033 is a deficient number, since it is larger than the sum of its proper divisors (744663167).

21522532033 is a wasteful number, since it uses less digits than its factorization.

21522532033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83591.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 21522532033 in words is "twenty-one billion, five hundred twenty-two million, five hundred thirty-two thousand, thirty-three".