122222445 has 16 divisors (see below), whose sum is σ = 195737472. Its totient is φ = 65124800.

The previous prime is 122222413. The next prime is 122222447. The reversal of 122222445 is 544222221.

It is not a de Polignac number, because 122222445 - 2⁵ = 122222413 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16384 + ... + 22646.

It is an arithmetic number, because the mean of its divisors is an integer number (12233592).

Almost surely, 2^122222445 is an apocalyptic number.

122222445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122222445 is a deficient number, since it is larger than the sum of its proper divisors (73515027).

122222445 is a wasteful number, since it uses less digits than its factorization.

122222445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572.

The product of its digits is 2560, while the sum is 24.

The square root of 122222445 is about 11055.4260433508. The cubic root of 122222445 is about 496.2688191718.

Adding to 122222445 its reverse (544222221), we get a palindrome (666444666).

The spelling of 122222445 in words is "one hundred twenty-two million, two hundred twenty-two thousand, four hundred forty-five".