22147122 has 32 divisors (see below), whose sum is σ = 47013120. Its totient is φ = 6935760.

The previous prime is 22147121. The next prime is 22147129. The reversal of 22147122 is 22174122.

It is not an unprimeable number, because it can be changed into a prime (22147121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14193 + ... + 15675.

It is an arithmetic number, because the mean of its divisors is an integer number (1469160).

Almost surely, 2^22147122 is an apocalyptic number.

22147122 is an abundant number, since it is smaller than the sum of its proper divisors (24865998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22147122 is a wasteful number, since it uses less digits than its factorization.

22147122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

The product of its digits is 448, while the sum is 21.

The square root of 22147122 is about 4706.0728851134. The cubic root of 22147122 is about 280.8271544182.

Subtracting 22147122 from its reverse (22174122), we obtain a cube (27000 = 30³).

The spelling of 22147122 in words is "twenty-two million, one hundred forty-seven thousand, one hundred twenty-two".