201121111110110 has 16 divisors (see below), whose sum is σ = 362039519530656. Its totient is φ = 80443662325728.

The previous prime is 201121111110109. The next prime is 201121111110131. The reversal of 201121111110110 is 11011111121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597588149 + ... + 597924608.

It is an arithmetic number, because the mean of its divisors is an integer number (22627469970666).

Almost surely, 2^{201121111110110} is an apocalyptic number.

201121111110110 is a deficient number, since it is larger than the sum of its proper divisors (160918408420546).

201121111110110 is a wasteful number, since it uses less digits than its factorization.

201121111110110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195529587.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 201121111110110 its reverse (11011111121102), we get a palindrome (212132222231212).

The spelling of 201121111110110 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred eleven million, one hundred ten thousand, one hundred ten".