42213122131249 has 2 divisors, whose sum is σ = 42213122131250. Its totient is φ = 42213122131248.

The previous prime is 42213122131223. The next prime is 42213122131253. The reversal of 42213122131249 is 94213122131224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41968928025649 + 244194105600 = 6478343^2 + 494160^2 .

It is a cyclic number.

It is not a de Polignac number, because 42213122131249 - 2⁵ = 42213122131217 is a prime.

It is not a weakly prime, because it can be changed into another prime (42213122111249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21106561065624 + 21106561065625.

It is an arithmetic number, because the mean of its divisors is an integer number (21106561065625).

Almost surely, 2^{42213122131249} is an apocalyptic number.

It is an amenable number.

42213122131249 is a deficient number, since it is larger than the sum of its proper divisors (1).

42213122131249 is an equidigital number, since it uses as much as digits as its factorization.

42213122131249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The spelling of 42213122131249 in words is "forty-two trillion, two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred forty-nine".