214124021 has 4 divisors (see below), whose sum is σ = 214374732. Its totient is φ = 213873312.

The previous prime is 214123999. The next prime is 214124033. The reversal of 214124021 is 120421412.

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 203632900 + 10491121 = 14270^2 + 3239^2 .

It is a cyclic number.

It is not a de Polignac number, because 214124021 - 2⁶ = 214123957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214124041) 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, 124070 + ... + 125783.

It is an arithmetic number, because the mean of its divisors is an integer number (53593683).

Almost surely, 2^214124021 is an apocalyptic number.

It is an amenable number.

214124021 is a deficient number, since it is larger than the sum of its proper divisors (250711).

214124021 is an equidigital number, since it uses as much as digits as its factorization.

214124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250710.

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

The square root of 214124021 is about 14632.9771748609. The cubic root of 214124021 is about 598.2579292854.

Adding to 214124021 its reverse (120421412), we get a palindrome (334545433).

It can be divided in two parts, 2141 and 24021, that added together give a palindrome (26162).

The spelling of 214124021 in words is "two hundred fourteen million, one hundred twenty-four thousand, twenty-one".