201120001121 has 16 divisors (see below), whose sum is σ = 224682044160. Its totient is φ = 178828490880.

The previous prime is 201120001091. The next prime is 201120001129. The reversal of 201120001121 is 121100021102.

It is not a de Polignac number, because 201120001121 - 2³⁰ = 200046259297 is a prime.

It is a super-2 number, since 2×201120001121² (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 (201120001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2346095 + ... + 2430308.

It is an arithmetic number, because the mean of its divisors is an integer number (14042627760).

Almost surely, 2^201120001121 is an apocalyptic number.

It is an amenable number.

201120001121 is a deficient number, since it is larger than the sum of its proper divisors (23562043039).

201120001121 is a wasteful number, since it uses less digits than its factorization.

201120001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776536.

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

Adding to 201120001121 its reverse (121100021102), we get a palindrome (322220022223).

The spelling of 201120001121 in words is "two hundred one billion, one hundred twenty million, one thousand, one hundred twenty-one".