222120321231 has 16 divisors (see below), whose sum is σ = 297440225280. Its totient is φ = 147440485920.

The previous prime is 222120321223. The next prime is 222120321253. The reversal of 222120321231 is 132123021222.

It is not a de Polignac number, because 222120321231 - 2³ = 222120321223 is a prime.

It is a super-2 number, since 2×222120321231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222120321198 and 222120321207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120321431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6732666 + ... + 6765576.

It is an arithmetic number, because the mean of its divisors is an integer number (18590014080).

Almost surely, 2^222120321231 is an apocalyptic number.

222120321231 is a deficient number, since it is larger than the sum of its proper divisors (75319904049).

222120321231 is a wasteful number, since it uses less digits than its factorization.

222120321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42566.

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

Adding to 222120321231 its reverse (132123021222), we get a palindrome (354243342453).

The spelling of 222120321231 in words is "two hundred twenty-two billion, one hundred twenty million, three hundred twenty-one thousand, two hundred thirty-one".