20020011220221 has 8 divisors (see below), whose sum is σ = 26693479453344. Its totient is φ = 13346608566960.

The previous prime is 20020011220199. The next prime is 20020011220249. The reversal of 20020011220221 is 12202211002002.

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

It is not a de Polignac number, because 20020011220221 - 2²⁶ = 20019944111357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020011220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020011220271) 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, 15678175 + ... + 16906956.

It is an arithmetic number, because the mean of its divisors is an integer number (3336684931668).

Almost surely, 2^{20020011220221} is an apocalyptic number.

It is an amenable number.

20020011220221 is a deficient number, since it is larger than the sum of its proper divisors (6673468233123).

20020011220221 is a wasteful number, since it uses less digits than its factorization.

20020011220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32789931.

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

Adding to 20020011220221 its reverse (12202211002002), we get a palindrome (32222222222223).

The spelling of 20020011220221 in words is "twenty trillion, twenty billion, eleven million, two hundred twenty thousand, two hundred twenty-one".