20202002210121 has 8 divisors (see below), whose sum is σ = 27664003026624. Its totient is φ = 13104001433520.

The previous prime is 20202002210069. The next prime is 20202002210153. The reversal of 20202002210121 is 12101220020202.

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

It is not a de Polignac number, because 20202002210121 - 2²⁷ = 20201867992393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20202002210121.

It is not an unprimeable number, because it can be changed into a prime (20202002210821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91000009845 + ... + 91000010066.

It is an arithmetic number, because the mean of its divisors is an integer number (3458000378328).

Almost surely, 2^{20202002210121} is an apocalyptic number.

It is an amenable number.

20202002210121 is a deficient number, since it is larger than the sum of its proper divisors (7462000816503).

20202002210121 is a wasteful number, since it uses less digits than its factorization.

20202002210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182000019951.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20202002210121 its reverse (12101220020202), we get a palindrome (32303222230323).

The spelling of 20202002210121 in words is "twenty trillion, two hundred two billion, two million, two hundred ten thousand, one hundred twenty-one".