20722140033 has 12 divisors (see below), whose sum is σ = 32140462320. Its totient is φ = 11841222792.

The previous prime is 20722140029. The next prime is 20722140083. The reversal of 20722140033 is 33004122702.

It is not a de Polignac number, because 20722140033 - 2² = 20722140029 is a prime.

It is a super-2 number, since 2×20722140033² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20722139985 and 20722140012.

It is not an unprimeable number, because it can be changed into a prime (20722140083) 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, 70483323 + ... + 70483616.

It is an arithmetic number, because the mean of its divisors is an integer number (2678371860).

Almost surely, 2^20722140033 is an apocalyptic number.

It is an amenable number.

20722140033 is a deficient number, since it is larger than the sum of its proper divisors (11418322287).

20722140033 is a wasteful number, since it uses less digits than its factorization.

20722140033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140966956 (or 140966949 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

Adding to 20722140033 its reverse (33004122702), we get a palindrome (53726262735).

The spelling of 20722140033 in words is "twenty billion, seven hundred twenty-two million, one hundred forty thousand, thirty-three".