21202233130133 has 4 divisors (see below), whose sum is σ = 23129708869248. Its totient is φ = 19274757391020.

The previous prime is 21202233130103. The next prime is 21202233130157. The reversal of 21202233130133 is 33103133220212.

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 21202233130133 - 2⁸ = 21202233129877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202233130103) 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, 963737869541 + ... + 963737869562.

It is an arithmetic number, because the mean of its divisors is an integer number (5782427217312).

Almost surely, 2^{21202233130133} is an apocalyptic number.

It is an amenable number.

21202233130133 is a deficient number, since it is larger than the sum of its proper divisors (1927475739115).

21202233130133 is a wasteful number, since it uses less digits than its factorization.

21202233130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927475739114.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21202233130133 its reverse (33103133220212), we get a palindrome (54305366350345).

The spelling of 21202233130133 in words is "twenty-one trillion, two hundred two billion, two hundred thirty-three million, one hundred thirty thousand, one hundred thirty-three".