20202133021 has 32 divisors (see below), whose sum is σ = 25376384000. Its totient is φ = 16023011760.

The previous prime is 20202132943. The next prime is 20202133027. The reversal of 20202133021 is 12033120202.

It is not a de Polignac number, because 20202133021 - 2¹¹ = 20202130973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202132986 and 20202133004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202133027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244186 + ... + 316276.

It is an arithmetic number, because the mean of its divisors is an integer number (793012000).

Almost surely, 2^20202133021 is an apocalyptic number.

It is an amenable number.

20202133021 is a deficient number, since it is larger than the sum of its proper divisors (5174250979).

20202133021 is an equidigital number, since it uses as much as digits as its factorization.

20202133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72174 (or 72160 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20202133021 its reverse (12033120202), we get a palindrome (32235253223).

The spelling of 20202133021 in words is "twenty billion, two hundred two million, one hundred thirty-three thousand, twenty-one".