101001201111 has 6 divisors (see below), whose sum is σ = 145890623840. Its totient is φ = 67334134068.

The previous prime is 101001201109. The next prime is 101001201139. The reversal of 101001201111 is 111102100101.

It is not a de Polignac number, because 101001201111 - 2¹ = 101001201109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11222355679 = 101001201111 / (1 + 0 + 1 + 0 + 0 + 1 + 2 + 0 + 1 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001201093 and 101001201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001201181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5611177831 + ... + 5611177848.

Almost surely, 2^101001201111 is an apocalyptic number.

101001201111 is a deficient number, since it is larger than the sum of its proper divisors (44889422729).

101001201111 is a wasteful number, since it uses less digits than its factorization.

101001201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222355685 (or 11222355682 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 101001201111 its reverse (111102100101), we get a palindrome (212103301212).

The spelling of 101001201111 in words is "one hundred one billion, one million, two hundred one thousand, one hundred eleven".