122420446 has 8 divisors (see below), whose sum is σ = 183696624. Its totient is φ = 61188240.

The previous prime is 122420443. The next prime is 122420447. The reversal of 122420446 is 644024221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 122420446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815 + ... + 15898.

It is an arithmetic number, because the mean of its divisors is an integer number (22962078).

Almost surely, 2^122420446 is an apocalyptic number.

122420446 is a deficient number, since it is larger than the sum of its proper divisors (61276178).

122420446 is a wasteful number, since it uses less digits than its factorization.

122420446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21986.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 122420446 is about 11064.3773435291. The cubic root of 122420446 is about 496.5366606163.

Adding to 122420446 its reverse (644024221), we get a palindrome (766444667).

The spelling of 122420446 in words is "one hundred twenty-two million, four hundred twenty thousand, four hundred forty-six".