101021201111 has 8 divisors (see below), whose sum is σ = 101095766400. Its totient is φ = 100946667960.

The previous prime is 101021201089. The next prime is 101021201227. The reversal of 101021201111 is 111102120101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101021201111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101021201092 and 101021201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021201711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11107676 + ... + 11116766.

It is an arithmetic number, because the mean of its divisors is an integer number (12636970800).

Almost surely, 2^101021201111 is an apocalyptic number.

101021201111 is a deficient number, since it is larger than the sum of its proper divisors (74565289).

101021201111 is an equidigital number, since it uses as much as digits as its factorization.

101021201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16069.

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

Adding to 101021201111 its reverse (111102120101), we get a palindrome (212123321212).

The spelling of 101021201111 in words is "one hundred one billion, twenty-one million, two hundred one thousand, one hundred eleven".