42212413 has 2 divisors, whose sum is σ = 42212414. Its totient is φ = 42212412.

The previous prime is 42212399. The next prime is 42212431. The reversal of 42212413 is 31421224.

Together with next prime (42212431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40411449 + 1800964 = 6357^2 + 1342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42212413 is a prime.

It is a super-2 number, since 2×42212413² = 3563775622565138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42212473) 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 as a sum of consecutive naturals, namely, 21106206 + 21106207.

It is an arithmetic number, because the mean of its divisors is an integer number (21106207).

Almost surely, 2^42212413 is an apocalyptic number.

It is an amenable number.

42212413 is a deficient number, since it is larger than the sum of its proper divisors (1).

42212413 is an equidigital number, since it uses as much as digits as its factorization.

42212413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 19.

The square root of 42212413 is about 6497.1080489707. The cubic root of 42212413 is about 348.1876740160.

Adding to 42212413 its reverse (31421224), we get a palindrome (73633637).

The spelling of 42212413 in words is "forty-two million, two hundred twelve thousand, four hundred thirteen".