122223431 has 12 divisors (see below), whose sum is σ = 135190776. Its totient is φ = 110412720.

The previous prime is 122223427. The next prime is 122223473. The reversal of 122223431 is 134322221.

It is not a de Polignac number, because 122223431 - 2² = 122223427 is a prime.

It is a super-2 number, since 2×122223431² = 29877134170823522, 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 (122223631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16625 + ... + 22821.

It is an arithmetic number, because the mean of its divisors is an integer number (11265898).

Almost surely, 2^122223431 is an apocalyptic number.

122223431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122223431 is a deficient number, since it is larger than the sum of its proper divisors (12967345).

122223431 is a wasteful number, since it uses less digits than its factorization.

122223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382 (or 6371 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 122223431 is about 11055.4706367481. The cubic root of 122223431 is about 496.2701536778.

Adding to 122223431 its reverse (134322221), we get a palindrome (256545652).

The spelling of 122223431 in words is "one hundred twenty-two million, two hundred twenty-three thousand, four hundred thirty-one".