122606421 has 16 divisors (see below), whose sum is σ = 189462528. Its totient is φ = 69073200.

The previous prime is 122606387. The next prime is 122606423. The reversal of 122606421 is 124606221.

It is not a de Polignac number, because 122606421 - 2⁶ = 122606357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122606391 and 122606400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122606423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39625 + ... + 42606.

It is an arithmetic number, because the mean of its divisors is an integer number (11841408).

Almost surely, 2^122606421 is an apocalyptic number.

It is an amenable number.

122606421 is a deficient number, since it is larger than the sum of its proper divisors (66856107).

122606421 is an equidigital number, since it uses as much as digits as its factorization.

122606421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82312.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 122606421 is about 11072.7783776250. The cubic root of 122606421 is about 496.7879712613.

It can be divided in two parts, 12260 and 6421, that added together give a palindrome (18681).

The spelling of 122606421 in words is "one hundred twenty-two million, six hundred six thousand, four hundred twenty-one".