122420401 has 8 divisors (see below), whose sum is σ = 130680000. Its totient is φ = 114342480.

The previous prime is 122420393. The next prime is 122420413. The reversal of 122420401 is 104024221.

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

It is a cyclic number.

It is not a de Polignac number, because 122420401 - 2³ = 122420393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122420461) 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 7 ways as a sum of consecutive naturals, for example, 44026 + ... + 46723.

It is an arithmetic number, because the mean of its divisors is an integer number (16335000).

Almost surely, 2^122420401 is an apocalyptic number.

It is an amenable number.

122420401 is a deficient number, since it is larger than the sum of its proper divisors (8259599).

122420401 is an equidigital number, since it uses as much as digits as its factorization.

122420401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90839.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 122420401 is about 11064.3753099757. The cubic root of 122420401 is about 496.5365997764.

Adding to 122420401 its reverse (104024221), we get a palindrome (226444622).

The spelling of 122420401 in words is "one hundred twenty-two million, four hundred twenty thousand, four hundred one".