20211133101 has 24 divisors (see below), whose sum is σ = 27731653920. Its totient is φ = 13090467456.

The previous prime is 20211133099. The next prime is 20211133133. The reversal of 20211133101 is 10133111202.

It is a happy number.

It is not a de Polignac number, because 20211133101 - 2¹ = 20211133099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211133181) 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 23 ways as a sum of consecutive naturals, for example, 1061695 + ... + 1080563.

It is an arithmetic number, because the mean of its divisors is an integer number (1155485580).

Almost surely, 2^20211133101 is an apocalyptic number.

It is an amenable number.

20211133101 is a deficient number, since it is larger than the sum of its proper divisors (7520520819).

20211133101 is an equidigital number, since it uses as much as digits as its factorization.

20211133101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085 (or 19012 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20211133101 its reverse (10133111202), we get a palindrome (30344244303).

The spelling of 20211133101 in words is "twenty billion, two hundred eleven million, one hundred thirty-three thousand, one hundred one".