20421411043214 has 32 divisors (see below), whose sum is σ = 30811095563040. Its totient is φ = 10151188641792.

The previous prime is 20421411043139. The next prime is 20421411043217. The reversal of 20421411043214 is 41234011412402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20421411043217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241889292 + ... + 2241898400.

It is an arithmetic number, because the mean of its divisors is an integer number (962846736345).

Almost surely, 2^{20421411043214} is an apocalyptic number.

20421411043214 is a deficient number, since it is larger than the sum of its proper divisors (10389684519826).

20421411043214 is a wasteful number, since it uses less digits than its factorization.

20421411043214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16244.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 20421411043214 its reverse (41234011412402), we get a palindrome (61655422455616).

The spelling of 20421411043214 in words is "twenty trillion, four hundred twenty-one billion, four hundred eleven million, forty-three thousand, two hundred fourteen".