20021101011201 has 8 divisors (see below), whose sum is σ = 26694973216384. Its totient is φ = 13347314740080.

The previous prime is 20021101011199. The next prime is 20021101011221. The reversal of 20021101011201 is 10211010112002.

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

It is not a de Polignac number, because 20021101011201 - 2¹ = 20021101011199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021101011221) 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, 20937910 + ... + 21873231.

It is an arithmetic number, because the mean of its divisors is an integer number (3336871652048).

Almost surely, 2^{20021101011201} is an apocalyptic number.

It is an amenable number.

20021101011201 is a deficient number, since it is larger than the sum of its proper divisors (6673872205183).

20021101011201 is a wasteful number, since it uses less digits than its factorization.

20021101011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42967031.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20021101011201 its reverse (10211010112002), we get a palindrome (30232111123203).

The spelling of 20021101011201 in words is "twenty trillion, twenty-one billion, one hundred one million, eleven thousand, two hundred one".