21333020022 has 24 divisors (see below), whose sum is σ = 46414948320. Its totient is φ = 7081252080.

The previous prime is 21333020003. The next prime is 21333020029. The reversal of 21333020022 is 22002033312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21333019977 and 21333020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333020029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2475129 + ... + 2483732.

It is an arithmetic number, because the mean of its divisors is an integer number (1933956180).

Almost surely, 2^21333020022 is an apocalyptic number.

21333020022 is an abundant number, since it is smaller than the sum of its proper divisors (25081928298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21333020022 is a wasteful number, since it uses less digits than its factorization.

21333020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959108 (or 4959105 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21333020022 its reverse (22002033312), we get a palindrome (43335053334).

The spelling of 21333020022 in words is "twenty-one billion, three hundred thirty-three million, twenty thousand, twenty-two".