122217401 has 4 divisors (see below), whose sum is σ = 125520612. Its totient is φ = 118914192.

The previous prime is 122217391. The next prime is 122217413. The reversal of 122217401 is 104712221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94381225 + 27836176 = 9715^2 + 5276^2 .

It is a cyclic number.

It is not a de Polignac number, because 122217401 - 2¹⁰ = 122216377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122217461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651550 + ... + 1651623.

It is an arithmetic number, because the mean of its divisors is an integer number (31380153).

Almost surely, 2^122217401 is an apocalyptic number.

It is an amenable number.

122217401 is a deficient number, since it is larger than the sum of its proper divisors (3303211).

122217401 is an equidigital number, since it uses as much as digits as its factorization.

122217401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303210.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 122217401 is about 11055.1979177218. The cubic root of 122217401 is about 496.2619922360.

Adding to 122217401 its reverse (104712221), we get a palindrome (226929622).

The spelling of 122217401 in words is "one hundred twenty-two million, two hundred seventeen thousand, four hundred one".