20012220202201 has 8 divisors (see below), whose sum is σ = 20500411050504. Its totient is φ = 19524033540480.

The previous prime is 20012220202189. The next prime is 20012220202229. The reversal of 20012220202201 is 10220202221002.

It can be written as a sum of positive squares in 4 ways, for example, as 38829096601 + 19973391105600 = 197051^2 + 4469160^2 .

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 20012220202201 - 2⁹ = 20012220201689 is a prime.

It is a super-3 number, since 3×20012220202201³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012220202241) 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, 10047031 + ... + 11872963.

It is an arithmetic number, because the mean of its divisors is an integer number (2562551381313).

Almost surely, 2^{20012220202201} is an apocalyptic number.

It is an amenable number.

20012220202201 is a deficient number, since it is larger than the sum of its proper divisors (488190848303).

20012220202201 is a wasteful number, since it uses less digits than its factorization.

20012220202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093291.

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

Adding to 20012220202201 its reverse (10220202221002), we get a palindrome (30232422423203).

The spelling of 20012220202201 in words is "twenty trillion, twelve billion, two hundred twenty million, two hundred two thousand, two hundred one".