21332022 has 16 divisors (see below), whose sum is σ = 44909760. Its totient is φ = 6736392.

The previous prime is 21332009. The next prime is 21332029. The reversal of 21332022 is 22023312.

It is a junction number, because it is equal to n+sod(n) for n = 21331992 and 21332010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332029) 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, 93448 + ... + 93675.

It is an arithmetic number, because the mean of its divisors is an integer number (2806860).

Almost surely, 2^21332022 is an apocalyptic number.

21332022 is an abundant number, since it is smaller than the sum of its proper divisors (23577738).

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

21332022 is a wasteful number, since it uses less digits than its factorization.

21332022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187147.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 21332022 is about 4618.6601953380. The cubic root of 21332022 is about 277.3388269504.

Adding to 21332022 its reverse (22023312), we get a palindrome (43355334).

The spelling of 21332022 in words is "twenty-one million, three hundred thirty-two thousand, twenty-two".