20341440221 has 8 divisors (see below), whose sum is σ = 21057792000. Its totient is φ = 19628849520.

The previous prime is 20341440211. The next prime is 20341440271. The reversal of 20341440221 is 12204414302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20341440221 - 2²² = 20337245917 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 (20341440211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929261 + ... + 950898.

It is an arithmetic number, because the mean of its divisors is an integer number (2632224000).

Almost surely, 2^20341440221 is an apocalyptic number.

It is an amenable number.

20341440221 is a deficient number, since it is larger than the sum of its proper divisors (716351779).

20341440221 is a wasteful number, since it uses less digits than its factorization.

20341440221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880539.

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

Adding to 20341440221 its reverse (12204414302), we get a palindrome (32545854523).

The spelling of 20341440221 in words is "twenty billion, three hundred forty-one million, four hundred forty thousand, two hundred twenty-one".