122401331 has 8 divisors (see below), whose sum is σ = 137548320. Its totient is φ = 108073152.

The previous prime is 122401313. The next prime is 122401333. The reversal of 122401331 is 133104221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122401331 is a prime.

It is a super-2 number, since 2×122401331² = 29964171661143122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122401333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204386 + ... + 204983.

It is an arithmetic number, because the mean of its divisors is an integer number (17193540).

Almost surely, 2^122401331 is an apocalyptic number.

122401331 is a deficient number, since it is larger than the sum of its proper divisors (15146989).

122401331 is a wasteful number, since it uses less digits than its factorization.

122401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409405.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 122401331 is about 11063.5135015961. The cubic root of 122401331 is about 496.5108158259.

Adding to 122401331 its reverse (133104221), we get a palindrome (255505552).

The spelling of 122401331 in words is "one hundred twenty-two million, four hundred one thousand, three hundred thirty-one".