201002111210121 has 16 divisors (see below), whose sum is σ = 301167042884736. Its totient is φ = 118315623989376.

The previous prime is 201002111210099. The next prime is 201002111210141. The reversal of 201002111210121 is 121012111200102.

It is a happy number.

201002111210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201002111210121 - 2¹⁸ = 201002110947977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201002111210121.

It is not an unprimeable number, because it can be changed into a prime (201002111210141) 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, 112041309700 + ... + 112041311493.

It is an arithmetic number, because the mean of its divisors is an integer number (18822940180296).

Almost surely, 2^{201002111210121} is an apocalyptic number.

It is an amenable number.

201002111210121 is a deficient number, since it is larger than the sum of its proper divisors (100164931674615).

201002111210121 is a wasteful number, since it uses less digits than its factorization.

201002111210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224082621232.

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

Adding to 201002111210121 its reverse (121012111200102), we get a palindrome (322014222410223).

The spelling of 201002111210121 in words is "two hundred one trillion, two billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-one".