22321337 has 2 divisors, whose sum is σ = 22321338. Its totient is φ = 22321336.

The previous prime is 22321331. The next prime is 22321363. The reversal of 22321337 is 73312322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19149376 + 3171961 = 4376^2 + 1781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22321337 is a prime.

It is a super-3 number, since 3×22321337³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22321331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160668 + 11160669.

It is an arithmetic number, because the mean of its divisors is an integer number (11160669).

Almost surely, 2^22321337 is an apocalyptic number.

It is an amenable number.

22321337 is a deficient number, since it is larger than the sum of its proper divisors (1).

22321337 is an equidigital number, since it uses as much as digits as its factorization.

22321337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 23.

The square root of 22321337 is about 4724.5462215963. The cubic root of 22321337 is about 281.5615850838.

Adding to 22321337 its reverse (73312322), we get a palindrome (95633659).

The spelling of 22321337 in words is "twenty-two million, three hundred twenty-one thousand, three hundred thirty-seven".