20221211133 has 12 divisors (see below), whose sum is σ = 29228051580. Its totient is φ = 13471744896.

The previous prime is 20221211113. The next prime is 20221211137. The reversal of 20221211133 is 33111212202.

It can be written as a sum of positive squares in 2 ways, for example, as 4948700409 + 15272510724 = 70347^2 + 123582^2 .

It is not a de Polignac number, because 20221211133 - 2³⁰ = 19147469309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221211137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 741066 + ... + 767867.

It is an arithmetic number, because the mean of its divisors is an integer number (2435670965).

Almost surely, 2^20221211133 is an apocalyptic number.

It is an amenable number.

20221211133 is a deficient number, since it is larger than the sum of its proper divisors (9006840447).

20221211133 is a wasteful number, since it uses less digits than its factorization.

20221211133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510428 (or 1510425 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20221211133 its reverse (33111212202), we get a palindrome (53332423335).

The spelling of 20221211133 in words is "twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred thirty-three".