20002122010221 has 8 divisors (see below), whose sum is σ = 28720995707040. Its totient is φ = 12308998160112.

The previous prime is 20002122010207. The next prime is 20002122010231. The reversal of 20002122010221 is 12201022120002.

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

It is not a de Polignac number, because 20002122010221 - 2²⁹ = 20001585139309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20002122010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002122010201) 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, 256437461631 + ... + 256437461708.

It is an arithmetic number, because the mean of its divisors is an integer number (3590124463380).

Almost surely, 2^{20002122010221} is an apocalyptic number.

It is an amenable number.

20002122010221 is a deficient number, since it is larger than the sum of its proper divisors (8718873696819).

20002122010221 is a wasteful number, since it uses less digits than its factorization.

20002122010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512874923355.

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

Adding to 20002122010221 its reverse (12201022120002), we get a palindrome (32203144130223).

It can be divided in two parts, 20002 and 122010221, that multiplied together give a palindrome (2440448440442).

The spelling of 20002122010221 in words is "twenty trillion, two billion, one hundred twenty-two million, ten thousand, two hundred twenty-one".