20202202200021 has 8 divisors (see below), whose sum is σ = 26943397498080. Its totient is φ = 13464570850992.

The previous prime is 20202202200017. The next prime is 20202202200023. The reversal of 20202202200021 is 12000220220202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20202202200021 - 2² = 20202202200017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202202200023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890974030 + ... + 890996703.

It is an arithmetic number, because the mean of its divisors is an integer number (3367924687260).

Almost surely, 2^{20202202200021} is an apocalyptic number.

It is an amenable number.

20202202200021 is a deficient number, since it is larger than the sum of its proper divisors (6741195298059).

20202202200021 is a wasteful number, since it uses less digits than its factorization.

20202202200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781974515.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20202202200021 its reverse (12000220220202), we get a palindrome (32202422420223).

The spelling of 20202202200021 in words is "twenty trillion, two hundred two billion, two hundred two million, two hundred thousand, twenty-one".