22327121 has 2 divisors, whose sum is σ = 22327122. Its totient is φ = 22327120.

The previous prime is 22327117. The next prime is 22327133. The reversal of 22327121 is 12172322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22137025 + 190096 = 4705^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 22327121 - 2² = 22327117 is a prime.

It is a super-3 number, since 3×22327121³ (a number of 23 digits) contains 333 as substring.

It is equal to p_1408511 and since 22327121 and 1408511 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 22327093 and 22327102.

It is not a weakly prime, because it can be changed into another prime (22327111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11163560 + 11163561.

It is an arithmetic number, because the mean of its divisors is an integer number (11163561).

Almost surely, 2^22327121 is an apocalyptic number.

It is an amenable number.

22327121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22327121 is an equidigital number, since it uses as much as digits as its factorization.

22327121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 22327121 is about 4725.1583042264. The cubic root of 22327121 is about 281.5859027962.

Adding to 22327121 its reverse (12172322), we get a palindrome (34499443).

The spelling of 22327121 in words is "twenty-two million, three hundred twenty-seven thousand, one hundred twenty-one".