121201411 has 4 divisors (see below), whose sum is σ = 125380800. Its totient is φ = 117022024.

The previous prime is 121201397. The next prime is 121201417. The reversal of 121201411 is 114102121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121201411 - 2¹¹ = 121199363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121201391 and 121201400.

It is not an unprimeable number, because it can be changed into a prime (121201417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089651 + ... + 2089708.

It is an arithmetic number, because the mean of its divisors is an integer number (31345200).

Almost surely, 2^121201411 is an apocalyptic number.

121201411 is a deficient number, since it is larger than the sum of its proper divisors (4179389).

121201411 is an equidigital number, since it uses as much as digits as its factorization.

121201411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179388.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 121201411 is about 11009.1512388558. The cubic root of 121201411 is about 494.8830264703.

Adding to 121201411 its reverse (114102121), we get a palindrome (235303532).

It can be divided in two parts, 12120 and 1411, that added together give a palindrome (13531).

The spelling of 121201411 in words is "one hundred twenty-one million, two hundred one thousand, four hundred eleven".