201112211220111 has 12 divisors (see below), whose sum is σ = 290518113100800. Its totient is φ = 134064331990560.

The previous prime is 201112211220101. The next prime is 201112211220131. The reversal of 201112211220111 is 111022112211102.

It is a happy number.

201112211220111 is a `hidden beast` number, since 2 + 0 + 111 + 221 + 1 + 220 + 111 = 666.

It is not a de Polignac number, because 201112211220111 - 2¹⁴ = 201112211203727 is a prime.

It is a super-2 number, since 2×201112211220111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112211220101) 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, 872835870 + ... + 873066251.

It is an arithmetic number, because the mean of its divisors is an integer number (24209842758400).

Almost surely, 2^{201112211220111} is an apocalyptic number.

201112211220111 is a deficient number, since it is larger than the sum of its proper divisors (89405901880689).

201112211220111 is a wasteful number, since it uses less digits than its factorization.

201112211220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745914926 (or 1745914923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 201112211220111 its reverse (111022112211102), we get a palindrome (312134323431213).

Subtracting from 201112211220111 its reverse (111022112211102), we obtain a palindrome (90090099009009).

The spelling of 201112211220111 in words is "two hundred one trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty thousand, one hundred eleven".