20412014221 has 4 divisors (see below), whose sum is σ = 20526048000. Its totient is φ = 20297980444.

The previous prime is 20412014219. The next prime is 20412014261. The reversal of 20412014221 is 12241021402.

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 20412014221 - 2¹ = 20412014219 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 (20412014261) 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, 57016621 + ... + 57016978.

It is an arithmetic number, because the mean of its divisors is an integer number (5131512000).

Almost surely, 2^20412014221 is an apocalyptic number.

It is an amenable number.

20412014221 is a deficient number, since it is larger than the sum of its proper divisors (114033779).

20412014221 is a wasteful number, since it uses less digits than its factorization.

20412014221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114033778.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20412014221 its reverse (12241021402), we get a palindrome (32653035623).

The spelling of 20412014221 in words is "twenty billion, four hundred twelve million, fourteen thousand, two hundred twenty-one".