22327021 has 12 divisors (see below), whose sum is σ = 23502528. Its totient is φ = 21200112.

The previous prime is 22327007. The next prime is 22327051. The reversal of 22327021 is 12072322.

It is not a de Polignac number, because 22327021 - 2⁵ = 22326989 is a prime.

It is a super-3 number, since 3×22327021³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22327021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22327051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64170 + ... + 64516.

It is an arithmetic number, because the mean of its divisors is an integer number (1958544).

Almost surely, 2^22327021 is an apocalyptic number.

It is an amenable number.

22327021 is a deficient number, since it is larger than the sum of its proper divisors (1175507).

22327021 is an equidigital number, since it uses as much as digits as its factorization.

22327021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22327021 is about 4725.1477225585. The cubic root of 22327021 is about 281.5854824012.

Adding to 22327021 its reverse (12072322), we get a palindrome (34399343).

The spelling of 22327021 in words is "twenty-two million, three hundred twenty-seven thousand, twenty-one".