21333312022 has 16 divisors (see below), whose sum is σ = 35163871632. Its totient is φ = 9626177920.

The previous prime is 21333312001. The next prime is 21333312029. The reversal of 21333312022 is 22021333312.

It is a super-2 number, since 2×21333312022² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21333311984 and 21333312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333312029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536023 + ... + 3542050.

It is an arithmetic number, because the mean of its divisors is an integer number (2197741977).

Almost surely, 2^21333312022 is an apocalyptic number.

21333312022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21333312022 is a deficient number, since it is larger than the sum of its proper divisors (13830559610).

21333312022 is a wasteful number, since it uses less digits than its factorization.

21333312022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078223.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21333312022 its reverse (22021333312), we get a palindrome (43354645334).

The spelling of 21333312022 in words is "twenty-one billion, three hundred thirty-three million, three hundred twelve thousand, twenty-two".