214204042121 has 4 divisors (see below), whose sum is σ = 214212810000. Its totient is φ = 214195274244.

The previous prime is 214204042103. The next prime is 214204042133. The reversal of 214204042121 is 121240402412.

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 214204042121 - 2¹⁰ = 214204041097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214204042321) 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, 4347191 + ... + 4396188.

It is an arithmetic number, because the mean of its divisors is an integer number (53553202500).

Almost surely, 2^214204042121 is an apocalyptic number.

It is an amenable number.

214204042121 is a deficient number, since it is larger than the sum of its proper divisors (8767879).

214204042121 is an equidigital number, since it uses as much as digits as its factorization.

214204042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767878.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 214204042121 its reverse (121240402412), we get a palindrome (335444444533).

The spelling of 214204042121 in words is "two hundred fourteen billion, two hundred four million, forty-two thousand, one hundred twenty-one".