12022020231 has 32 divisors (see below), whose sum is σ = 17475756480. Its totient is φ = 7306911744.

The previous prime is 12022020187. The next prime is 12022020247. The reversal of 12022020231 is 13202022021.

It is a happy number.

It is not a de Polignac number, because 12022020231 - 2⁷ = 12022020103 is a prime.

It is a super-2 number, since 2×12022020231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12022020231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022020251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4972735 + ... + 4975151.

It is an arithmetic number, because the mean of its divisors is an integer number (546117390).

Almost surely, 2^12022020231 is an apocalyptic number.

12022020231 is a deficient number, since it is larger than the sum of its proper divisors (5453736249).

12022020231 is a wasteful number, since it uses less digits than its factorization.

12022020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955.

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

Adding to 12022020231 its reverse (13202022021), we get a palindrome (25224042252).

The spelling of 12022020231 in words is "twelve billion, twenty-two million, twenty thousand, two hundred thirty-one".