42213122 has 16 divisors (see below), whose sum is σ = 73732032. Its totient is φ = 17749680.

The previous prime is 42213109. The next prime is 42213133. The reversal of 42213122 is 22131224.

It is a self number, because there is not a number n which added to its sum of digits gives 42213122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27704 + ... + 29187.

It is an arithmetic number, because the mean of its divisors is an integer number (4608252).

Almost surely, 2^42213122 is an apocalyptic number.

42213122 is a deficient number, since it is larger than the sum of its proper divisors (31518910).

42213122 is a wasteful number, since it uses less digits than its factorization.

42213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56953.

The product of its digits is 192, while the sum is 17.

The square root of 42213122 is about 6497.1626114790. The cubic root of 42213122 is about 348.1896233927.

Adding to 42213122 its reverse (22131224), we get a palindrome (64344346).

The spelling of 42213122 in words is "forty-two million, two hundred thirteen thousand, one hundred twenty-two".