101201122111 has 4 divisors (see below), whose sum is σ = 107154129312. Its totient is φ = 95248114912.

The previous prime is 101201122109. The next prime is 101201122117. The reversal of 101201122111 is 111221102101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111221102101 = 3251 ⋅34211351.

It is a cyclic number.

It is not a de Polignac number, because 101201122111 - 2¹ = 101201122109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201122091 and 101201122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201122117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976503575 + ... + 2976503608.

It is an arithmetic number, because the mean of its divisors is an integer number (26788532328).

Almost surely, 2^101201122111 is an apocalyptic number.

101201122111 is a deficient number, since it is larger than the sum of its proper divisors (5953007201).

101201122111 is an equidigital number, since it uses as much as digits as its factorization.

101201122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953007200.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101201122111 its reverse (111221102101), we get a palindrome (212422224212).

The spelling of 101201122111 in words is "one hundred one billion, two hundred one million, one hundred twenty-two thousand, one hundred eleven".