214154125121 has 4 divisors (see below), whose sum is σ = 214155662292. Its totient is φ = 214152587952.

The previous prime is 214154125111. The next prime is 214154125127. The reversal of 214154125121 is 121521451412.

214154125121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 127941420721 + 86212704400 = 357689^2 + 293620^2 .

It is a cyclic number.

It is not a de Polignac number, because 214154125121 - 2¹⁰ = 214154124097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214154125127) 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 3 ways as a sum of consecutive naturals, for example, 536186 + ... + 846051.

It is an arithmetic number, because the mean of its divisors is an integer number (53538915573).

Almost surely, 2^214154125121 is an apocalyptic number.

It is an amenable number.

214154125121 is a deficient number, since it is larger than the sum of its proper divisors (1537171).

214154125121 is a wasteful number, since it uses less digits than its factorization.

214154125121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537170.

The product of its digits is 3200, while the sum is 29.

Adding to 214154125121 its reverse (121521451412), we get a palindrome (335675576533).

The spelling of 214154125121 in words is "two hundred fourteen billion, one hundred fifty-four million, one hundred twenty-five thousand, one hundred twenty-one".