20054152221 has 16 divisors (see below), whose sum is σ = 28586623104. Its totient is φ = 12460829184.

The previous prime is 20054152177. The next prime is 20054152229. The reversal of 20054152221 is 12225145002.

It is not a de Polignac number, because 20054152221 - 2¹¹ = 20054150173 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20054152191 and 20054152200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054152229) 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, 1903576 + ... + 1914081.

It is an arithmetic number, because the mean of its divisors is an integer number (1786663944).

Almost surely, 2^20054152221 is an apocalyptic number.

It is an amenable number.

20054152221 is a deficient number, since it is larger than the sum of its proper divisors (8532470883).

20054152221 is a wasteful number, since it uses less digits than its factorization.

20054152221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817780.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20054152221 its reverse (12225145002), we get a palindrome (32279297223).

The spelling of 20054152221 in words is "twenty billion, fifty-four million, one hundred fifty-two thousand, two hundred twenty-one".