214440023021 has 4 divisors (see below), whose sum is σ = 245074312032. Its totient is φ = 183805734012.

The previous prime is 214440023011. The next prime is 214440023023. The reversal of 214440023021 is 120320044412.

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 214440023021 - 2¹⁴ = 214440006637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214440023023) 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, 15317144495 + ... + 15317144508.

It is an arithmetic number, because the mean of its divisors is an integer number (61268578008).

Almost surely, 2^214440023021 is an apocalyptic number.

It is an amenable number.

214440023021 is a deficient number, since it is larger than the sum of its proper divisors (30634289011).

214440023021 is an equidigital number, since it uses as much as digits as its factorization.

214440023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30634289010.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 214440023021 its reverse (120320044412), we get a palindrome (334760067433).

The spelling of 214440023021 in words is "two hundred fourteen billion, four hundred forty million, twenty-three thousand, twenty-one".