201120211001 has 4 divisors (see below), whose sum is σ = 201961718400. Its totient is φ = 200278703604.

The previous prime is 201120210983. The next prime is 201120211003. The reversal of 201120211001 is 100112021102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100112021102 = 2 ⋅50056010551.

It is a cyclic number.

It is not a de Polignac number, because 201120211001 - 2¹⁰ = 201120209977 is a prime.

It is a super-2 number, since 2×201120211001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201120211003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420753341 + ... + 420753818.

It is an arithmetic number, because the mean of its divisors is an integer number (50490429600).

Almost surely, 2^201120211001 is an apocalyptic number.

It is an amenable number.

201120211001 is a deficient number, since it is larger than the sum of its proper divisors (841507399).

201120211001 is an equidigital number, since it uses as much as digits as its factorization.

201120211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841507398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201120211001 its reverse (100112021102), we get a palindrome (301232232103).

The spelling of 201120211001 in words is "two hundred one billion, one hundred twenty million, two hundred eleven thousand, one".