20021020120201 has 8 divisors (see below), whose sum is σ = 20058482360000. Its totient is φ = 19983576024720.

The previous prime is 20021020120183. The next prime is 20021020120219. The reversal of 20021020120201 is 10202102012002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20021020120183) and next prime (20021020120219).

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

It is a cyclic number.

It is not a de Polignac number, because 20021020120201 - 2¹⁵ = 20021020087433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021020120271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326146 + ... + 6741883.

It is an arithmetic number, because the mean of its divisors is an integer number (2507310295000).

Almost surely, 2^{20021020120201} is an apocalyptic number.

It is an amenable number.

20021020120201 is a deficient number, since it is larger than the sum of its proper divisors (37462239799).

20021020120201 is an equidigital number, since it uses as much as digits as its factorization.

20021020120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072159.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20021020120201 its reverse (10202102012002), we get a palindrome (30223122132203).

The spelling of 20021020120201 in words is "twenty trillion, twenty-one billion, twenty million, one hundred twenty thousand, two hundred one".