422021031 has 8 divisors (see below), whose sum is σ = 564290160. Its totient is φ = 280549632.

The previous prime is 422021029. The next prime is 422021057. The reversal of 422021031 is 130120224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422021031 - 2¹ = 422021029 is a prime.

It is a super-2 number, since 2×422021031² = 356203501212605922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 422021031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422021071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198196 + ... + 200313.

It is an arithmetic number, because the mean of its divisors is an integer number (70536270).

Almost surely, 2^422021031 is an apocalyptic number.

422021031 is a deficient number, since it is larger than the sum of its proper divisors (142269129).

422021031 is a wasteful number, since it uses less digits than its factorization.

422021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398865.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 422021031 is about 20543.1504643275. The cubic root of 422021031 is about 750.0865269060.

Adding to 422021031 its reverse (130120224), we get a palindrome (552141255).

The spelling of 422021031 in words is "four hundred twenty-two million, twenty-one thousand, thirty-one".