20115224051 has 8 divisors (see below), whose sum is σ = 21923544720. Its totient is φ = 18344188512.

The previous prime is 20115224039. The next prime is 20115224071. The reversal of 20115224051 is 15042251102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20115224051 - 2¹⁰ = 20115223027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20115224021) 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, 9320156 + ... + 9322313.

It is an arithmetic number, because the mean of its divisors is an integer number (2740443090).

Almost surely, 2^20115224051 is an apocalyptic number.

20115224051 is a deficient number, since it is larger than the sum of its proper divisors (1808320669).

20115224051 is a wasteful number, since it uses less digits than its factorization.

20115224051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18642565.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 20115224051 its reverse (15042251102), we get a palindrome (35157475153).

The spelling of 20115224051 in words is "twenty billion, one hundred fifteen million, two hundred twenty-four thousand, fifty-one".