42213322 has 4 divisors (see below), whose sum is σ = 63319986. Its totient is φ = 21106660.

The previous prime is 42213317. The next prime is 42213343. The reversal of 42213322 is 22331224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38328481 + 3884841 = 6191^2 + 1971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42213322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10553329 + ... + 10553332.

Almost surely, 2^42213322 is an apocalyptic number.

42213322 is a deficient number, since it is larger than the sum of its proper divisors (21106664).

42213322 is a wasteful number, since it uses less digits than its factorization.

42213322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21106663.

The product of its digits is 576, while the sum is 19.

The square root of 42213322 is about 6497.1780027948. The cubic root of 42213322 is about 348.1901732834.

Adding to 42213322 its reverse (22331224), we get a palindrome (64544546).

The spelling of 42213322 in words is "forty-two million, two hundred thirteen thousand, three hundred twenty-two".