214240121 has 4 divisors (see below), whose sum is σ = 214326912. Its totient is φ = 214153332.

The previous prime is 214240099. The next prime is 214240123. The reversal of 214240121 is 121042412.

214240121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 214240121 - 2⁶ = 214240057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214240121.

It is not an unprimeable number, because it can be changed into a prime (214240123) 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, 39581 + ... + 44666.

It is an arithmetic number, because the mean of its divisors is an integer number (53581728).

Almost surely, 2^214240121 is an apocalyptic number.

It is an amenable number.

214240121 is a deficient number, since it is larger than the sum of its proper divisors (86791).

214240121 is an equidigital number, since it uses as much as digits as its factorization.

214240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86790.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 214240121 is about 14636.9437042027. The cubic root of 214240121 is about 598.3660367200.

Adding to 214240121 its reverse (121042412), we get a palindrome (335282533).

The spelling of 214240121 in words is "two hundred fourteen million, two hundred forty thousand, one hundred twenty-one".