422031111 has 16 divisors (see below), whose sum is σ = 576664704. Its totient is φ = 274395744.

The previous prime is 422031107. The next prime is 422031143. The reversal of 422031111 is 111130224.

It is not a de Polignac number, because 422031111 - 2² = 422031107 is a prime.

It is a super-2 number, since 2×422031111² = 356220517303788642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422031101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99445 + ... + 103601.

It is an arithmetic number, because the mean of its divisors is an integer number (36041544).

Almost surely, 2^422031111 is an apocalyptic number.

422031111 is a deficient number, since it is larger than the sum of its proper divisors (154633593).

422031111 is a wasteful number, since it uses less digits than its factorization.

422031111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 422031111 is about 20543.3958001106. The cubic root of 422031111 is about 750.0924988137.

Adding to 422031111 its reverse (111130224), we get a palindrome (533161335).

The spelling of 422031111 in words is "four hundred twenty-two million, thirty-one thousand, one hundred eleven".