222120432331 has 4 divisors (see below), whose sum is σ = 253851922672. Its totient is φ = 190388941992.

The previous prime is 222120432319. The next prime is 222120432341. The reversal of 222120432331 is 133234021222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222120432331 - 2²³ = 222112043723 is a prime.

It is a super-2 number, since 2×222120432331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222120432296 and 222120432305.

It is not an unprimeable number, because it can be changed into a prime (222120432341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15865745160 + ... + 15865745173.

It is an arithmetic number, because the mean of its divisors is an integer number (63462980668).

Almost surely, 2^222120432331 is an apocalyptic number.

222120432331 is a deficient number, since it is larger than the sum of its proper divisors (31731490341).

222120432331 is an equidigital number, since it uses as much as digits as its factorization.

222120432331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31731490340.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 222120432331 its reverse (133234021222), we get a palindrome (355354453553).

The spelling of 222120432331 in words is "two hundred twenty-two billion, one hundred twenty million, four hundred thirty-two thousand, three hundred thirty-one".