201201002111 has 12 divisors (see below), whose sum is σ = 210351192912. Its totient is φ = 192433022496.

The previous prime is 201201002027. The next prime is 201201002153. The reversal of 201201002111 is 111200102102.

It is a de Polignac number, because none of the positive numbers 2^k-201201002111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201201002092 and 201201002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201002161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8482310 + ... + 8505996.

It is an arithmetic number, because the mean of its divisors is an integer number (17529266076).

Almost surely, 2^201201002111 is an apocalyptic number.

201201002111 is a deficient number, since it is larger than the sum of its proper divisors (9150190801).

201201002111 is a wasteful number, since it uses less digits than its factorization.

201201002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39790 (or 39767 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201201002111 its reverse (111200102102), we get a palindrome (312401104213).

Subtracting from 201201002111 its reverse (111200102102), we obtain a palindrome (90000900009).

The spelling of 201201002111 in words is "two hundred one billion, two hundred one million, two thousand, one hundred eleven".