122222407 has 2 divisors, whose sum is σ = 122222408. Its totient is φ = 122222406.

The previous prime is 122222389. The next prime is 122222411. The reversal of 122222407 is 704222221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122222407 - 2⁷ = 122222279 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122222447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111203 + 61111204.

It is an arithmetic number, because the mean of its divisors is an integer number (61111204).

Almost surely, 2^122222407 is an apocalyptic number.

122222407 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222407 is an equidigital number, since it uses as much as digits as its factorization.

122222407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 122222407 is about 11055.4243247376. The cubic root of 122222407 is about 496.2687677404.

Adding to 122222407 its reverse (704222221), we get a palindrome (826444628).

The spelling of 122222407 in words is "one hundred twenty-two million, two hundred twenty-two thousand, four hundred seven".