42412213 has 2 divisors, whose sum is σ = 42412214. Its totient is φ = 42412212.

The previous prime is 42412211. The next prime is 42412219. The reversal of 42412213 is 31221424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27804529 + 14607684 = 5273^2 + 3822^2 .

It is a cyclic number.

It is not a de Polignac number, because 42412213 - 2¹ = 42412211 is a prime.

It is a super-3 number, since 3×42412213³ (a number of 24 digits) contains 333 as substring.

Together with 42412211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42412211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21206106 + 21206107.

It is an arithmetic number, because the mean of its divisors is an integer number (21206107).

Almost surely, 2^42412213 is an apocalyptic number.

It is an amenable number.

42412213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42412213 is an equidigital number, since it uses as much as digits as its factorization.

42412213 is an evil number, because the sum of its binary digits is even.

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

The square root of 42412213 is about 6512.4659692009. The cubic root of 42412213 is about 348.7361574307.

Adding to 42412213 its reverse (31221424), we get a palindrome (73633637).

The spelling of 42412213 in words is "forty-two million, four hundred twelve thousand, two hundred thirteen".