121214401 has 16 divisors (see below), whose sum is σ = 152691840. Its totient is φ = 93473280.

The previous prime is 121214341. The next prime is 121214411. The reversal of 121214401 is 104412121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121214401 - 2⁹ = 121213889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121214411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (9543240).

Almost surely, 2^121214401 is an apocalyptic number.

121214401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121214401 is a deficient number, since it is larger than the sum of its proper divisors (31477439).

121214401 is a wasteful number, since it uses less digits than its factorization.

121214401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16344.

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

The square root of 121214401 is about 11009.7411867855. The cubic root of 121214401 is about 494.9007058598.

Adding to 121214401 its reverse (104412121), we get a palindrome (225626522).

The spelling of 121214401 in words is "one hundred twenty-one million, two hundred fourteen thousand, four hundred one".