22239122 has 4 divisors (see below), whose sum is σ = 33358686. Its totient is φ = 11119560.

The previous prime is 22239079. The next prime is 22239149. The reversal of 22239122 is 22193222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22193222 = 2 ⋅11096611.

It can be written as a sum of positive squares in only one way, i.e., 21353641 + 885481 = 4621^2 + 941^2 .

It is an unprimeable number.

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, 5559779 + ... + 5559782.

Almost surely, 2^22239122 is an apocalyptic number.

22239122 is a deficient number, since it is larger than the sum of its proper divisors (11119564).

22239122 is a wasteful number, since it uses less digits than its factorization.

22239122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119563.

The product of its digits is 864, while the sum is 23.

The square root of 22239122 is about 4715.8373593668. The cubic root of 22239122 is about 281.2154728315.

The spelling of 22239122 in words is "twenty-two million, two hundred thirty-nine thousand, one hundred twenty-two".