22531020201 has 6 divisors (see below), whose sum is σ = 32544806970. Its totient is φ = 15020680128.

The previous prime is 22531020151. The next prime is 22531020229. The reversal of 22531020201 is 10202013522.

It can be written as a sum of positive squares in only one way, i.e., 14387762601 + 8143257600 = 119949^2 + 90240^2 .

It is not a de Polignac number, because 22531020201 - 2⁹ = 22531019689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22531020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1251723336 + ... + 1251723353.

It is an arithmetic number, because the mean of its divisors is an integer number (5424134495).

Almost surely, 2^22531020201 is an apocalyptic number.

It is an amenable number.

22531020201 is a deficient number, since it is larger than the sum of its proper divisors (10013786769).

22531020201 is a wasteful number, since it uses less digits than its factorization.

22531020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503446695 (or 2503446692 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 22531020201 its reverse (10202013522), we get a palindrome (32733033723).

The spelling of 22531020201 in words is "twenty-two billion, five hundred thirty-one million, twenty thousand, two hundred one".