201111010102 has 4 divisors (see below), whose sum is σ = 301666515156. Its totient is φ = 100555505050.

The previous prime is 201111010091. The next prime is 201111010117. The reversal of 201111010102 is 201010111102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277752524 + ... + 50277752527.

It is an arithmetic number, because the mean of its divisors is an integer number (75416628789).

Almost surely, 2^201111010102 is an apocalyptic number.

201111010102 is a deficient number, since it is larger than the sum of its proper divisors (100555505054).

201111010102 is a wasteful number, since it uses less digits than its factorization.

201111010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100555505053.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 201111010102 its reverse (201010111102), we get a palindrome (402121121204).

The spelling of 201111010102 in words is "two hundred one billion, one hundred eleven million, ten thousand, one hundred two".