201111020121121 has 16 divisors (see below), whose sum is σ = 223598772619200. Its totient is φ = 179357304024000.

The previous prime is 201111020121019. The next prime is 201111020121181. The reversal of 201111020121121 is 121121020111102.

201111020121121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 201111020121121 - 2¹⁹ = 201111019596833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111020121095 and 201111020121104.

It is not an unprimeable number, because it can be changed into a prime (201111020121181) 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, 830236791 + ... + 830478988.

It is an arithmetic number, because the mean of its divisors is an integer number (13974923288700).

Almost surely, 2^{201111020121121} is an apocalyptic number.

It is an amenable number.

201111020121121 is a deficient number, since it is larger than the sum of its proper divisors (22487752498079).

201111020121121 is a wasteful number, since it uses less digits than its factorization.

201111020121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660716000.

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

Adding to 201111020121121 its reverse (121121020111102), we get a palindrome (322232040232223).

The spelling of 201111020121121 in words is "two hundred one trillion, one hundred eleven billion, twenty million, one hundred twenty-one thousand, one hundred twenty-one".