20020022221201 has 8 divisors (see below), whose sum is σ = 21210812383464. Its totient is φ = 18830692258560.

The previous prime is 20020022221141. The next prime is 20020022221217. The reversal of 20020022221201 is 10212222002002.

It can be written as a sum of positive squares in 4 ways, for example, as 5106515257600 + 14913506963601 = 2259760^2 + 3861801^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020022221201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020023221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365021670 + ... + 365076511.

It is an arithmetic number, because the mean of its divisors is an integer number (2651351547933).

Almost surely, 2^{20020022221201} is an apocalyptic number.

It is an amenable number.

20020022221201 is a deficient number, since it is larger than the sum of its proper divisors (1190790162263).

20020022221201 is a wasteful number, since it uses less digits than its factorization.

20020022221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730099811.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20020022221201 its reverse (10212222002002), we get a palindrome (30232244223203).

The spelling of 20020022221201 in words is "twenty trillion, twenty billion, twenty-two million, two hundred twenty-one thousand, two hundred one".