122220231 has 8 divisors (see below), whose sum is σ = 186240384. Its totient is φ = 69840120.

The previous prime is 122220227. The next prime is 122220247. The reversal of 122220231 is 132022221.

It is a happy number.

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

It is not a de Polignac number, because 122220231 - 2² = 122220227 is a prime.

It is a super-2 number, since 2×122220231² = 29875569731386722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122220231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220251) 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, 2909985 + ... + 2910026.

It is an arithmetic number, because the mean of its divisors is an integer number (23280048).

Almost surely, 2^122220231 is an apocalyptic number.

122220231 is a deficient number, since it is larger than the sum of its proper divisors (64020153).

122220231 is an equidigital number, since it uses as much as digits as its factorization.

122220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820021.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 122220231 is about 11055.3259110711. The cubic root of 122220231 is about 496.2658225978.

Adding to 122220231 its reverse (132022221), we get a palindrome (254242452).

The spelling of 122220231 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred thirty-one".