201100212111 has 16 divisors (see below), whose sum is σ = 270958119264. Its totient is φ = 132655171584.

The previous prime is 201100212107. The next prime is 201100212119. The reversal of 201100212111 is 111212001102.

It is not a de Polignac number, because 201100212111 - 2² = 201100212107 is a prime.

It is a super-2 number, since 2×201100212111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100212119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1274851 + ... + 1423883.

It is an arithmetic number, because the mean of its divisors is an integer number (16934882454).

Almost surely, 2^201100212111 is an apocalyptic number.

201100212111 is a deficient number, since it is larger than the sum of its proper divisors (69857907153).

201100212111 is a wasteful number, since it uses less digits than its factorization.

201100212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153770.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201100212111 its reverse (111212001102), we get a palindrome (312312213213).

The spelling of 201100212111 in words is "two hundred one billion, one hundred million, two hundred twelve thousand, one hundred eleven".