231122233212 has 24 divisors (see below), whose sum is σ = 580768688976. Its totient is φ = 71114533248.

The previous prime is 231122233189. The next prime is 231122233259. The reversal of 231122233212 is 212332221132.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740776233 + ... + 740776544.

It is an arithmetic number, because the mean of its divisors is an integer number (24198695374).

Almost surely, 2^231122233212 is an apocalyptic number.

It is an amenable number.

231122233212 is an abundant number, since it is smaller than the sum of its proper divisors (349646455764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231122233212 is a wasteful number, since it uses less digits than its factorization.

231122233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481552797 (or 1481552795 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 231122233212 its reverse (212332221132), we get a palindrome (443454454344).

The spelling of 231122233212 in words is "two hundred thirty-one billion, one hundred twenty-two million, two hundred thirty-three thousand, two hundred twelve".