21032212013233 has 4 divisors (see below), whose sum is σ = 21142328306688. Its totient is φ = 20922095719780.

The previous prime is 21032212013231. The next prime is 21032212013297. The reversal of 21032212013233 is 33231021223012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21032212013233 - 2¹ = 21032212013231 is a prime.

It is a super-2 number, since 2×21032212013233² (a number of 27 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 = 21032212013198 and 21032212013207.

It is not an unprimeable number, because it can be changed into a prime (21032212013231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55058146441 + ... + 55058146822.

It is an arithmetic number, because the mean of its divisors is an integer number (5285582076672).

Almost surely, 2^{21032212013233} is an apocalyptic number.

It is an amenable number.

21032212013233 is a deficient number, since it is larger than the sum of its proper divisors (110116293455).

21032212013233 is a wasteful number, since it uses less digits than its factorization.

21032212013233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110116293454.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21032212013233 its reverse (33231021223012), we get a palindrome (54263233236245).

The spelling of 21032212013233 in words is "twenty-one trillion, thirty-two billion, two hundred twelve million, thirteen thousand, two hundred thirty-three".