240214220021 has 4 divisors (see below), whose sum is σ = 241272432672. Its totient is φ = 239156007372.

The previous prime is 240214220011. The next prime is 240214220023. The reversal of 240214220021 is 120022412042.

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 240214220021 - 2³⁰ = 239140478197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240214219975 and 240214220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240214220023) 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, 529105985 + ... + 529106438.

It is an arithmetic number, because the mean of its divisors is an integer number (60318108168).

Almost surely, 2^240214220021 is an apocalyptic number.

It is an amenable number.

240214220021 is a deficient number, since it is larger than the sum of its proper divisors (1058212651).

240214220021 is a wasteful number, since it uses less digits than its factorization.

240214220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058212650.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 240214220021 its reverse (120022412042), we get a palindrome (360236632063).

The spelling of 240214220021 in words is "two hundred forty billion, two hundred fourteen million, two hundred twenty thousand, twenty-one".