122404213 has 16 divisors (see below), whose sum is σ = 134922240. Its totient is φ = 110602800.

The previous prime is 122404193. The next prime is 122404241. The reversal of 122404213 is 312404221.

It is not a de Polignac number, because 122404213 - 2²⁵ = 88849781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122404013) 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, 40356 + ... + 43282.

It is an arithmetic number, because the mean of its divisors is an integer number (8432640).

Almost surely, 2^122404213 is an apocalyptic number.

It is an amenable number.

122404213 is a deficient number, since it is larger than the sum of its proper divisors (12518027).

122404213 is a wasteful number, since it uses less digits than its factorization.

122404213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

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

The square root of 122404213 is about 11063.6437487837. The cubic root of 122404213 is about 496.5147126598.

Adding to 122404213 its reverse (312404221), we get a palindrome (434808434).

The spelling of 122404213 in words is "one hundred twenty-two million, four hundred four thousand, two hundred thirteen".