20221010236 has 24 divisors (see below), whose sum is σ = 41382535040. Its totient is φ = 8464608432.

The previous prime is 20221010221. The next prime is 20221010237. The reversal of 20221010236 is 63201012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221010237) 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, 8396226 + ... + 8398633.

Almost surely, 2^20221010236 is an apocalyptic number.

It is an amenable number.

20221010236 is an abundant number, since it is smaller than the sum of its proper divisors (21161524804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221010236 is a wasteful number, since it uses less digits than its factorization.

20221010236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16794913 (or 16794911 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20221010236 its reverse (63201012202), we get a palindrome (83422022438).

The spelling of 20221010236 in words is "twenty billion, two hundred twenty-one million, ten thousand, two hundred thirty-six".