21433323022 has 4 divisors (see below), whose sum is σ = 32149984536. Its totient is φ = 10716661510.

The previous prime is 21433322959. The next prime is 21433323029. The reversal of 21433323022 is 22032333412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433323029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5358330754 + ... + 5358330757.

It is an arithmetic number, because the mean of its divisors is an integer number (8037496134).

Almost surely, 2^21433323022 is an apocalyptic number.

21433323022 is a deficient number, since it is larger than the sum of its proper divisors (10716661514).

21433323022 is a wasteful number, since it uses less digits than its factorization.

21433323022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716661513.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21433323022 its reverse (22032333412), we get a palindrome (43465656434).

The spelling of 21433323022 in words is "twenty-one billion, four hundred thirty-three million, three hundred twenty-three thousand, twenty-two".