20054221 has 8 divisors (see below), whose sum is σ = 21909888. Its totient is φ = 18204000.

The previous prime is 20054201. The next prime is 20054227. The reversal of 20054221 is 12245002.

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 20054221 - 2⁷ = 20054093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20054195 and 20054204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054227) 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, 12801 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (2738736).

Almost surely, 2^20054221 is an apocalyptic number.

It is an amenable number.

20054221 is a deficient number, since it is larger than the sum of its proper divisors (1855667).

20054221 is a wasteful number, since it uses less digits than its factorization.

20054221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20054221 is about 4478.1939439913. The cubic root of 20054221 is about 271.6868377176.

Adding to 20054221 its reverse (12245002), we get a palindrome (32299223).

It can be divided in two parts, 2005 and 4221, that added together give a palindrome (6226).

The spelling of 20054221 in words is "twenty million, fifty-four thousand, two hundred twenty-one".