222120302231 has 8 divisors (see below), whose sum is σ = 227570916384. Its totient is φ = 216734192640.

The previous prime is 222120302191. The next prime is 222120302263. The reversal of 222120302231 is 132203021222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-222120302231 is a prime.

It is a super-2 number, since 2×222120302231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120002231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16119170 + ... + 16132943.

It is an arithmetic number, because the mean of its divisors is an integer number (28446364548).

Almost surely, 2^222120302231 is an apocalyptic number.

222120302231 is a deficient number, since it is larger than the sum of its proper divisors (5450614153).

222120302231 is an equidigital number, since it uses as much as digits as its factorization.

222120302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32252281.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222120302231 its reverse (132203021222), we get a palindrome (354323323453).

The spelling of 222120302231 in words is "two hundred twenty-two billion, one hundred twenty million, three hundred two thousand, two hundred thirty-one".