201112021001121 has 16 divisors (see below), whose sum is σ = 269542500780480. Its totient is φ = 133378130350080.

The previous prime is 201112021001107. The next prime is 201112021001131. The reversal of 201112021001121 is 121100120211102.

It is a happy number.

It is not a de Polignac number, because 201112021001121 - 2²⁶ = 201111953892257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201112021001121.

It is not an unprimeable number, because it can be changed into a prime (201112021001131) 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, 39697686 + ... + 44476176.

It is an arithmetic number, because the mean of its divisors is an integer number (16846406298780).

Almost surely, 2^{201112021001121} is an apocalyptic number.

It is an amenable number.

201112021001121 is a deficient number, since it is larger than the sum of its proper divisors (68430479779359).

201112021001121 is a wasteful number, since it uses less digits than its factorization.

201112021001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851376.

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

Adding to 201112021001121 its reverse (121100120211102), we get a palindrome (322212141212223).

The spelling of 201112021001121 in words is "two hundred one trillion, one hundred twelve billion, twenty-one million, one thousand, one hundred twenty-one".