422212031 has 4 divisors (see below), whose sum is σ = 422576232. Its totient is φ = 421847832.

The previous prime is 422212019. The next prime is 422212057. The reversal of 422212031 is 130212224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422212031 is a prime.

It is a super-2 number, since 2×422212031² = 356525998242289922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422212061) 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 in 3 ways as a sum of consecutive naturals, for example, 180356 + ... + 182681.

It is an arithmetic number, because the mean of its divisors is an integer number (105644058).

Almost surely, 2^422212031 is an apocalyptic number.

422212031 is a deficient number, since it is larger than the sum of its proper divisors (364201).

422212031 is a wasteful number, since it uses less digits than its factorization.

422212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364200.

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

The square root of 422212031 is about 20547.7986898840. The cubic root of 422212031 is about 750.1996689125.

Adding to 422212031 its reverse (130212224), we get a palindrome (552424255).

The spelling of 422212031 in words is "four hundred twenty-two million, two hundred twelve thousand, thirty-one".