201011202211111 has 4 divisors (see below), whose sum is σ = 203555647808800. Its totient is φ = 198466756613424.

The previous prime is 201011202211067. The next prime is 201011202211117. The reversal of 201011202211111 is 111112202110102.

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

It is a cyclic number.

It is not a de Polignac number, because 201011202211111 - 2⁴⁵ = 165826830122279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011202211117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272222798726 + ... + 1272222798883.

It is an arithmetic number, because the mean of its divisors is an integer number (50888911952200).

Almost surely, 2^{201011202211111} is an apocalyptic number.

201011202211111 is a deficient number, since it is larger than the sum of its proper divisors (2544445597689).

201011202211111 is an equidigital number, since it uses as much as digits as its factorization.

201011202211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544445597688.

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

Adding to 201011202211111 its reverse (111112202110102), we get a palindrome (312123404321213).

The spelling of 201011202211111 in words is "two hundred one trillion, eleven billion, two hundred two million, two hundred eleven thousand, one hundred eleven".