121401211 has 8 divisors (see below), whose sum is σ = 122778000. Its totient is φ = 120029952.

The previous prime is 121401209. The next prime is 121401229. The reversal of 121401211 is 112104121.

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 121401211 - 2¹ = 121401209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121401191 and 121401200.

It is not an unprimeable number, because it can be changed into a prime (121401011) 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 7 ways as a sum of consecutive naturals, for example, 55311 + ... + 57463.

It is an arithmetic number, because the mean of its divisors is an integer number (15347250).

Almost surely, 2^121401211 is an apocalyptic number.

121401211 is a deficient number, since it is larger than the sum of its proper divisors (1376789).

121401211 is a wasteful number, since it uses less digits than its factorization.

121401211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765.

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

The square root of 121401211 is about 11018.2217712297. The cubic root of 121401211 is about 495.1548146848.

Adding to 121401211 its reverse (112104121), we get a palindrome (233505332).

The spelling of 121401211 in words is "one hundred twenty-one million, four hundred one thousand, two hundred eleven".