12401412121 has 8 divisors (see below), whose sum is σ = 14181234624. Its totient is φ = 10623637680.

The previous prime is 12401412103. The next prime is 12401412131. The reversal of 12401412121 is 12121410421.

It is a happy number.

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 12401412121 - 2²⁷ = 12267194393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401412131) 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, 499015 + ... + 523276.

It is an arithmetic number, because the mean of its divisors is an integer number (1772654328).

Almost surely, 2^12401412121 is an apocalyptic number.

It is an amenable number.

12401412121 is a deficient number, since it is larger than the sum of its proper divisors (1779822503).

12401412121 is a wasteful number, since it uses less digits than its factorization.

12401412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024031.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12401412121 its reverse (12121410421), we get a palindrome (24522822542).

The spelling of 12401412121 in words is "twelve billion, four hundred one million, four hundred twelve thousand, one hundred twenty-one".