122426219 has 4 divisors (see below), whose sum is σ = 124253544. Its totient is φ = 120598896.

The previous prime is 122426191. The next prime is 122426251. The reversal of 122426219 is 912624221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122426219 is a prime.

It is a super-2 number, since 2×122426219² = 29976358197271922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122426191 and 122426200.

It is not an unprimeable number, because it can be changed into a prime (122426279) 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, 913562 + ... + 913695.

It is an arithmetic number, because the mean of its divisors is an integer number (31063386).

Almost surely, 2^122426219 is an apocalyptic number.

122426219 is a deficient number, since it is larger than the sum of its proper divisors (1827325).

122426219 is an equidigital number, since it uses as much as digits as its factorization.

122426219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827324.

The product of its digits is 3456, while the sum is 29.

The square root of 122426219 is about 11064.6382227346. The cubic root of 122426219 is about 496.5444655791.

The spelling of 122426219 in words is "one hundred twenty-two million, four hundred twenty-six thousand, two hundred nineteen".