20221113525 has 24 divisors (see below), whose sum is σ = 33444094560. Its totient is φ = 10780770240.

The previous prime is 20221113499. The next prime is 20221113529. The reversal of 20221113525 is 52531112202.

It is not a de Polignac number, because 20221113525 - 2¹⁶ = 20221047989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221113495 and 20221113504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221113529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171834 + ... + 264516.

It is an arithmetic number, because the mean of its divisors is an integer number (1393503940).

Almost surely, 2^20221113525 is an apocalyptic number.

20221113525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20221113525 is a deficient number, since it is larger than the sum of its proper divisors (13222981035).

20221113525 is a wasteful number, since it uses less digits than its factorization.

20221113525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95605 (or 95600 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20221113525 its reverse (52531112202), we get a palindrome (72752225727).

The spelling of 20221113525 in words is "twenty billion, two hundred twenty-one million, one hundred thirteen thousand, five hundred twenty-five".