101200112221 has 4 divisors (see below), whose sum is σ = 108984736252. Its totient is φ = 93415488192.

The previous prime is 101200112197. The next prime is 101200112239. The reversal of 101200112221 is 122211002101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37980552996 + 63219559225 = 194886^2 + 251435^2 .

It is not a de Polignac number, because 101200112221 - 2⁷ = 101200112093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 7784624017 = 101200112221 / (1 + 0 + 1 + 2 + 0 + 0 + 1 + 1 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200112291) 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, 3892311996 + ... + 3892312021.

It is an arithmetic number, because the mean of its divisors is an integer number (27246184063).

Almost surely, 2^101200112221 is an apocalyptic number.

It is an amenable number.

101200112221 is a deficient number, since it is larger than the sum of its proper divisors (7784624031).

101200112221 is an equidigital number, since it uses as much as digits as its factorization.

101200112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784624030.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101200112221 its reverse (122211002101), we get a palindrome (223411114322).

The spelling of 101200112221 in words is "one hundred one billion, two hundred million, one hundred twelve thousand, two hundred twenty-one".