20202033213021 has 16 divisors (see below), whose sum is σ = 29596176852480. Its totient is φ = 12155572630320.

The previous prime is 20202033213017. The next prime is 20202033213029. The reversal of 20202033213021 is 12031233020202.

It is a happy number.

It is not a de Polignac number, because 20202033213021 - 2² = 20202033213017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202033213029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2202091905 + ... + 2202101078.

It is an arithmetic number, because the mean of its divisors is an integer number (1849761053280).

Almost surely, 2^{20202033213021} is an apocalyptic number.

It is an amenable number.

20202033213021 is a deficient number, since it is larger than the sum of its proper divisors (9394143639459).

20202033213021 is a wasteful number, since it uses less digits than its factorization.

20202033213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404193136.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20202033213021 its reverse (12031233020202), we get a palindrome (32233266233223).

The spelling of 20202033213021 in words is "twenty trillion, two hundred two billion, thirty-three million, two hundred thirteen thousand, twenty-one".