2001202221101 has 8 divisors (see below), whose sum is σ = 2025037406784. Its totient is φ = 1977432428160.

The previous prime is 2001202221071. The next prime is 2001202221133. The reversal of 2001202221101 is 1011222021002.

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 2001202221101 - 2¹⁰ = 2001202220077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001202221001) 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, 16286615 + ... + 16409028.

It is an arithmetic number, because the mean of its divisors is an integer number (253129675848).

Almost surely, 2^{2001202221101} is an apocalyptic number.

It is an amenable number.

2001202221101 is a deficient number, since it is larger than the sum of its proper divisors (23835185683).

2001202221101 is an equidigital number, since it uses as much as digits as its factorization.

2001202221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32696371.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001202221101 its reverse (1011222021002), we get a palindrome (3012424242103).

The spelling of 2001202221101 in words is "two trillion, one billion, two hundred two million, two hundred twenty-one thousand, one hundred one".