122221413 has 16 divisors (see below), whose sum is σ = 182865600. Its totient is φ = 80672400.

The previous prime is 122221409. The next prime is 122221417. The reversal of 122221413 is 314122221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122221409) and next prime (122221417).

It is not a de Polignac number, because 122221413 - 2² = 122221409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221417) 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, 19683 + ... + 25136.

It is an arithmetic number, because the mean of its divisors is an integer number (11429100).

Almost surely, 2^122221413 is an apocalyptic number.

It is an amenable number.

122221413 is a deficient number, since it is larger than the sum of its proper divisors (60644187).

122221413 is a wasteful number, since it uses less digits than its factorization.

122221413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44929 (or 44923 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 122221413 is about 11055.3793693387. The cubic root of 122221413 is about 496.2674223993.

Adding to 122221413 its reverse (314122221), we get a palindrome (436343634).

The spelling of 122221413 in words is "one hundred twenty-two million, two hundred twenty-one thousand, four hundred thirteen".