122403421 has 12 divisors (see below), whose sum is σ = 143074560. Its totient is φ = 104411160.

The previous prime is 122403397. The next prime is 122403431. The reversal of 122403421 is 124304221.

It is not a de Polignac number, because 122403421 - 2⁷ = 122403293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122403431) 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 11 ways as a sum of consecutive naturals, for example, 4420 + ... + 16258.

It is an arithmetic number, because the mean of its divisors is an integer number (11922880).

Almost surely, 2^122403421 is an apocalyptic number.

It is an amenable number.

122403421 is a deficient number, since it is larger than the sum of its proper divisors (20671139).

122403421 is a wasteful number, since it uses less digits than its factorization.

122403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12064 (or 12057 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 122403421 is about 11063.6079558162. The cubic root of 122403421 is about 496.5136417802.

Adding to 122403421 its reverse (124304221), we get a palindrome (246707642).

The spelling of 122403421 in words is "one hundred twenty-two million, four hundred three thousand, four hundred twenty-one".