121412401 has 4 divisors (see below), whose sum is σ = 132449904. Its totient is φ = 110374900.

The previous prime is 121412393. The next prime is 121412411. The reversal of 121412401 is 104214121.

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 121412401 - 2³ = 121412393 is a prime.

It is a super-2 number, since 2×121412401² = 29481942233169602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121412411) 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, 5518735 + ... + 5518756.

It is an arithmetic number, because the mean of its divisors is an integer number (33112476).

Almost surely, 2^121412401 is an apocalyptic number.

121412401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121412401 is a deficient number, since it is larger than the sum of its proper divisors (11037503).

121412401 is a wasteful number, since it uses less digits than its factorization.

121412401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11037502.

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

The square root of 121412401 is about 11018.7295547173. The cubic root of 121412401 is about 495.1700276361.

Adding to 121412401 its reverse (104214121), we get a palindrome (225626522).

The spelling of 121412401 in words is "one hundred twenty-one million, four hundred twelve thousand, four hundred one".