201220020200001 has 64 divisors (see below), whose sum is σ = 300499023605760. Its totient is φ = 118734033600000.

The previous prime is 201220020199999. The next prime is 201220020200077. The reversal of 201220020200001 is 100002020022102.

It is not a de Polignac number, because 201220020200001 - 2¹ = 201220020199999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201220020200001.

It is not an unprimeable number, because it can be changed into a prime (201220020200401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118123045 + ... + 119814413.

It is an arithmetic number, because the mean of its divisors is an integer number (4695297243840).

Almost surely, 2^{201220020200001} is an apocalyptic number.

It is an amenable number.

201220020200001 is a deficient number, since it is larger than the sum of its proper divisors (99279003405759).

201220020200001 is a wasteful number, since it uses less digits than its factorization.

201220020200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691958.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201220020200001 its reverse (100002020022102), we get a palindrome (301222040222103).

The spelling of 201220020200001 in words is "two hundred one trillion, two hundred twenty billion, twenty million, two hundred thousand, one".