21202232133 has 8 divisors (see below), whose sum is σ = 28959146496. Its totient is φ = 13790069600.

The previous prime is 21202232123. The next prime is 21202232171. The reversal of 21202232133 is 33123220212.

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 21202232133 - 2¹³ = 21202223941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202232113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86187813 + ... + 86188058.

It is an arithmetic number, because the mean of its divisors is an integer number (3619893312).

Almost surely, 2^21202232133 is an apocalyptic number.

It is an amenable number.

21202232133 is a deficient number, since it is larger than the sum of its proper divisors (7756914363).

21202232133 is a wasteful number, since it uses less digits than its factorization.

21202232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172375915.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21202232133 its reverse (33123220212), we get a palindrome (54325452345).

The spelling of 21202232133 in words is "twenty-one billion, two hundred two million, two hundred thirty-two thousand, one hundred thirty-three".