20002244421 has 32 divisors (see below), whose sum is σ = 29359411200. Its totient is φ = 12058064640.

The previous prime is 20002244411. The next prime is 20002244497. The reversal of 20002244421 is 12444220002.

It is not a de Polignac number, because 20002244421 - 2⁷ = 20002244293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002244401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174250 + ... + 265268.

It is an arithmetic number, because the mean of its divisors is an integer number (917481600).

Almost surely, 2^20002244421 is an apocalyptic number.

It is an amenable number.

20002244421 is a deficient number, since it is larger than the sum of its proper divisors (9357166779).

20002244421 is a wasteful number, since it uses less digits than its factorization.

20002244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91209.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20002244421 its reverse (12444220002), we get a palindrome (32446464423).

The spelling of 20002244421 in words is "twenty billion, two million, two hundred forty-four thousand, four hundred twenty-one".