121241401 has 4 divisors (see below), whose sum is σ = 123296400. Its totient is φ = 119186404.

The previous prime is 121241383. The next prime is 121241423. The reversal of 121241401 is 104142121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121241401 - 2⁷ = 121241273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121244401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027411 + ... + 1027528.

It is an arithmetic number, because the mean of its divisors is an integer number (30824100).

Almost surely, 2^121241401 is an apocalyptic number.

It is an amenable number.

121241401 is a deficient number, since it is larger than the sum of its proper divisors (2054999).

121241401 is an equidigital number, since it uses as much as digits as its factorization.

121241401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054998.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 121241401 is about 11010.9673053733. The cubic root of 121241401 is about 494.9374488181.

Adding to 121241401 its reverse (104142121), we get a palindrome (225383522).

The spelling of 121241401 in words is "one hundred twenty-one million, two hundred forty-one thousand, four hundred one".