231222021231224 has 8 divisors (see below), whose sum is σ = 433541289808560. Its totient is φ = 115611010615608.

The previous prime is 231222021231169. The next prime is 231222021231247. The reversal of 231222021231224 is 422132120222132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14451376326944 + ... + 14451376326959.

It is an arithmetic number, because the mean of its divisors is an integer number (54192661226070).

Almost surely, 2^{231222021231224} is an apocalyptic number.

It is an amenable number.

231222021231224 is a deficient number, since it is larger than the sum of its proper divisors (202319268577336).

231222021231224 is a wasteful number, since it uses less digits than its factorization.

231222021231224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28902752653909 (or 28902752653905 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 231222021231224 its reverse (422132120222132), we get a palindrome (653354141453356).

The spelling of 231222021231224 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, twenty-one million, two hundred thirty-one thousand, two hundred twenty-four".