101201201111 has 4 divisors (see below), whose sum is σ = 101205619032. Its totient is φ = 101196783192.

The previous prime is 101201201053. The next prime is 101201201113. The reversal of 101201201111 is 111102102101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111102102101 = 29 ⋅3831106969.

It is a cyclic number.

It is not a de Polignac number, because 101201201111 - 2¹⁸ = 101200938967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201201092 and 101201201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201201113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2174420 + ... + 2220473.

It is an arithmetic number, because the mean of its divisors is an integer number (25301404758).

Almost surely, 2^101201201111 is an apocalyptic number.

101201201111 is a deficient number, since it is larger than the sum of its proper divisors (4417921).

101201201111 is an equidigital number, since it uses as much as digits as its factorization.

101201201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417920.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101201201111 its reverse (111102102101), we get a palindrome (212303303212).

The spelling of 101201201111 in words is "one hundred one billion, two hundred one million, two hundred one thousand, one hundred eleven".