1422312231 has 4 divisors (see below), whose sum is σ = 1896416312. Its totient is φ = 948208152.

The previous prime is 1422312211. The next prime is 1422312239. The reversal of 1422312231 is 1322132241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322132241 = 3 ⋅440710747.

It is not a de Polignac number, because 1422312231 - 2⁹ = 1422311719 is a prime.

It is a super-2 number, since 2×1422312231² = 4045944164904394722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422312198 and 1422312207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422312239) 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, 237052036 + ... + 237052041.

It is an arithmetic number, because the mean of its divisors is an integer number (474104078).

Almost surely, 2^1422312231 is an apocalyptic number.

1422312231 is a deficient number, since it is larger than the sum of its proper divisors (474104081).

1422312231 is an equidigital number, since it uses as much as digits as its factorization.

1422312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474104080.

The product of its digits is 576, while the sum is 21.

The square root of 1422312231 is about 37713.5550034732. Note that the first 3 decimals coincide. The cubic root of 1422312231 is about 1124.6006104258.

Adding to 1422312231 its reverse (1322132241), we get a palindrome (2744444472).

The spelling of 1422312231 in words is "one billion, four hundred twenty-two million, three hundred twelve thousand, two hundred thirty-one".