201120111122001 has 16 divisors (see below), whose sum is σ = 277389070257600. Its totient is φ = 129517753837248.

The previous prime is 201120111121997. The next prime is 201120111122033. The reversal of 201120111122001 is 100221111021102.

It is a happy number.

It is not a de Polignac number, because 201120111122001 - 2² = 201120111121997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201120111822001) 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, 6517584906 + ... + 6517615763.

It is an arithmetic number, because the mean of its divisors is an integer number (17336816891100).

Almost surely, 2^{201120111122001} is an apocalyptic number.

It is an amenable number.

201120111122001 is a deficient number, since it is larger than the sum of its proper divisors (76268959135599).

201120111122001 is a wasteful number, since it uses less digits than its factorization.

201120111122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13035200848.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201120111122001 its reverse (100221111021102), we get a palindrome (301341222143103).

The spelling of 201120111122001 in words is "two hundred one trillion, one hundred twenty billion, one hundred eleven million, one hundred twenty-two thousand, one".