21322412133 has 32 divisors (see below), whose sum is σ = 31931272320. Its totient is φ = 12542376960.

The previous prime is 21322412117. The next prime is 21322412141. The reversal of 21322412133 is 33121422312.

It is not a de Polignac number, because 21322412133 - 2⁴ = 21322412117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322412533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 478041 + ... + 520737.

It is an arithmetic number, because the mean of its divisors is an integer number (997852260).

Almost surely, 2^21322412133 is an apocalyptic number.

It is an amenable number.

21322412133 is a deficient number, since it is larger than the sum of its proper divisors (10608860187).

21322412133 is a wasteful number, since it uses less digits than its factorization.

21322412133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43157.

The product of its digits is 1728, while the sum is 24.

Adding to 21322412133 its reverse (33121422312), we get a palindrome (54443834445).

The spelling of 21322412133 in words is "twenty-one billion, three hundred twenty-two million, four hundred twelve thousand, one hundred thirty-three".