201112111210121 has 8 divisors (see below), whose sum is σ = 211118235936000. Its totient is φ = 191325901313520.

The previous prime is 201112111210103. The next prime is 201112111210141. The reversal of 201112111210121 is 121012111211102.

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

It is a cyclic number.

It is not a de Polignac number, because 201112111210121 - 2⁶ = 201112111210057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201112111210121.

It is not an unprimeable number, because it can be changed into a prime (201112111210141) 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, 54978705446 + ... + 54978709103.

It is an arithmetic number, because the mean of its divisors is an integer number (26389779492000).

Almost surely, 2^{201112111210121} is an apocalyptic number.

It is an amenable number.

201112111210121 is a deficient number, since it is larger than the sum of its proper divisors (10006124725879).

201112111210121 is a wasteful number, since it uses less digits than its factorization.

201112111210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109957414639.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 201112111210121 its reverse (121012111211102), we get a palindrome (322124222421223).

The spelling of 201112111210121 in words is "two hundred one trillion, one hundred twelve billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-one".