101200021111 has 8 divisors (see below), whose sum is σ = 115672695200. Its totient is φ = 86731229088.

The previous prime is 101200021099. The next prime is 101200021151. The reversal of 101200021111 is 111120002101.

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

It is a de Polignac number, because none of the positive numbers 2^k-101200021111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200021151) 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, 914436 + ... + 1019113.

It is an arithmetic number, because the mean of its divisors is an integer number (14459086900).

Almost surely, 2^101200021111 is an apocalyptic number.

101200021111 is a deficient number, since it is larger than the sum of its proper divisors (14472674089).

101200021111 is an equidigital number, since it uses as much as digits as its factorization.

101200021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941033.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101200021111 its reverse (111120002101), we get a palindrome (212320023212).

The spelling of 101200021111 in words is "one hundred one billion, two hundred million, twenty-one thousand, one hundred eleven".