122121431 has 8 divisors (see below), whose sum is σ = 126259200. Its totient is φ = 117996120.

The previous prime is 122121413. The next prime is 122121437. The reversal of 122121431 is 134121221.

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

It is a cyclic number.

It is not a de Polignac number, because 122121431 - 2¹⁴ = 122105047 is a prime.

It is a super-2 number, since 2×122121431² = 29827287818975522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19550 + ... + 25028.

It is an arithmetic number, because the mean of its divisors is an integer number (15782400).

Almost surely, 2^122121431 is an apocalyptic number.

122121431 is a deficient number, since it is larger than the sum of its proper divisors (4137769).

122121431 is an equidigital number, since it uses as much as digits as its factorization.

122121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229.

The product of its digits is 96, while the sum is 17.

The square root of 122121431 is about 11050.8565731350. The cubic root of 122121431 is about 496.1320632885.

Adding to 122121431 its reverse (134121221), we get a palindrome (256242652).

The spelling of 122121431 in words is "one hundred twenty-two million, one hundred twenty-one thousand, four hundred thirty-one".