122442111 has 28 divisors (see below), whose sum is σ = 200281320. Its totient is φ = 74202480.

The previous prime is 122442107. The next prime is 122442119. The reversal of 122442111 is 111244221.

It is not a de Polignac number, because 122442111 - 2² = 122442107 is a prime.

It is a super-2 number, since 2×122442111² = 29984141092272642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122442119) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 385 + ... + 15653.

Almost surely, 2^122442111 is an apocalyptic number.

122442111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122442111 is a deficient number, since it is larger than the sum of its proper divisors (77839209).

122442111 is an equidigital number, since it uses as much as digits as its factorization.

122442111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298 (or 15283 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 122442111 is about 11065.3563431098. The cubic root of 122442111 is about 496.5659499292.

Adding to 122442111 its reverse (111244221), we get a palindrome (233686332).

The spelling of 122442111 in words is "one hundred twenty-two million, four hundred forty-two thousand, one hundred eleven".