22321151 has 2 divisors, whose sum is σ = 22321152. Its totient is φ = 22321150.

The previous prime is 22321133. The next prime is 22321157. The reversal of 22321151 is 15112322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22321151 - 2⁶ = 22321087 is a prime.

It is a super-3 number, since 3×22321151³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22321157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160575 + 11160576.

It is an arithmetic number, because the mean of its divisors is an integer number (11160576).

Almost surely, 2^22321151 is an apocalyptic number.

22321151 is a deficient number, since it is larger than the sum of its proper divisors (1).

22321151 is an equidigital number, since it uses as much as digits as its factorization.

22321151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 17.

The square root of 22321151 is about 4724.5265371252. The cubic root of 22321151 is about 281.5608030129.

Adding to 22321151 its reverse (15112322), we get a palindrome (37433473).

The spelling of 22321151 in words is "twenty-two million, three hundred twenty-one thousand, one hundred fifty-one".