122111219 has 2 divisors, whose sum is σ = 122111220. Its totient is φ = 122111218.

The previous prime is 122111189. The next prime is 122111279. The reversal of 122111219 is 912111221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122111219 - 2¹² = 122107123 is a prime.

It is a super-2 number, since 2×122111219² = 29822299611331922, 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 122111219.

It is not a weakly prime, because it can be changed into another prime (122111279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055609 + 61055610.

It is an arithmetic number, because the mean of its divisors is an integer number (61055610).

Almost surely, 2^122111219 is an apocalyptic number.

122111219 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111219 is an equidigital number, since it uses as much as digits as its factorization.

122111219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 20.

The square root of 122111219 is about 11050.3945178441. The cubic root of 122111219 is about 496.1182337697.

The spelling of 122111219 in words is "one hundred twenty-two million, one hundred eleven thousand, two hundred nineteen".