422001031 has 4 divisors (see below), whose sum is σ = 422235864. Its totient is φ = 421766200.

The previous prime is 422001017. The next prime is 422001043. The reversal of 422001031 is 130100224.

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

It is a cyclic number.

It is not a de Polignac number, because 422001031 - 2⁷ = 422000903 is a prime.

It is a super-2 number, since 2×422001031² = 356169740330125922, 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 (422001131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114700 + ... + 118321.

It is an arithmetic number, because the mean of its divisors is an integer number (105558966).

Almost surely, 2^422001031 is an apocalyptic number.

422001031 is a deficient number, since it is larger than the sum of its proper divisors (234833).

422001031 is a wasteful number, since it uses less digits than its factorization.

422001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234832.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 422001031 is about 20542.6636783062. The cubic root of 422001031 is about 750.0746776011.

Adding to 422001031 its reverse (130100224), we get a palindrome (552101255).

The spelling of 422001031 in words is "four hundred twenty-two million, one thousand, thirty-one".