201122020001 has 8 divisors (see below), whose sum is σ = 237779728320. Its totient is φ = 166445809488.

The previous prime is 201122019971. The next prime is 201122020009. The reversal of 201122020001 is 100020221102.

It is a happy number.

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

It is not a de Polignac number, because 201122020001 - 2⁶ = 201122019937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201122020009) 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, 495374231 + ... + 495374636.

It is an arithmetic number, because the mean of its divisors is an integer number (29722466040).

Almost surely, 2^201122020001 is an apocalyptic number.

It is an amenable number.

201122020001 is a deficient number, since it is larger than the sum of its proper divisors (36657708319).

201122020001 is an equidigital number, since it uses as much as digits as its factorization.

201122020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990748903.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201122020001 its reverse (100020221102), we get a palindrome (301142241103).

The spelling of 201122020001 in words is "two hundred one billion, one hundred twenty-two million, twenty thousand, one".