101111201211 has 16 divisors (see below), whose sum is σ = 141969219840. Its totient is φ = 63833263200.

The previous prime is 101111201197. The next prime is 101111201227. The reversal of 101111201211 is 112102111101.

It is not a de Polignac number, because 101111201211 - 2⁹ = 101111200699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101111201231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227940 + ... + 504161.

It is an arithmetic number, because the mean of its divisors is an integer number (8873076240).

Almost surely, 2^101111201211 is an apocalyptic number.

101111201211 is a deficient number, since it is larger than the sum of its proper divisors (40858018629).

101111201211 is a wasteful number, since it uses less digits than its factorization.

101111201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734546.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101111201211 its reverse (112102111101), we get a palindrome (213213312312).

The spelling of 101111201211 in words is "one hundred one billion, one hundred eleven million, two hundred one thousand, two hundred eleven".