22542229 has 2 divisors, whose sum is σ = 22542230. Its totient is φ = 22542228.

The previous prime is 22542209. The next prime is 22542263. The reversal of 22542229 is 92224522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16892100 + 5650129 = 4110^2 + 2377^2 .

It is a cyclic number.

It is not a de Polignac number, because 22542229 - 2¹³ = 22534037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22542197 and 22542206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22542209) 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, 11271114 + 11271115.

It is an arithmetic number, because the mean of its divisors is an integer number (11271115).

Almost surely, 2^22542229 is an apocalyptic number.

It is an amenable number.

22542229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22542229 is an equidigital number, since it uses as much as digits as its factorization.

22542229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 22542229 is about 4747.8657310417. The cubic root of 22542229 is about 282.4873161089.

The spelling of 22542229 in words is "twenty-two million, five hundred forty-two thousand, two hundred twenty-nine".