101031100221 has 4 divisors (see below), whose sum is σ = 134708133632. Its totient is φ = 67354066812.

The previous prime is 101031100199. The next prime is 101031100241. The reversal of 101031100221 is 122001130101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101031100221 - 2⁹ = 101031099709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101031100197 and 101031100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101031100241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16838516701 + ... + 16838516706.

It is an arithmetic number, because the mean of its divisors is an integer number (33677033408).

Almost surely, 2^101031100221 is an apocalyptic number.

It is an amenable number.

101031100221 is a deficient number, since it is larger than the sum of its proper divisors (33677033411).

101031100221 is an equidigital number, since it uses as much as digits as its factorization.

101031100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33677033410.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 101031100221 its reverse (122001130101), we get a palindrome (223032230322).

The spelling of 101031100221 in words is "one hundred one billion, thirty-one million, one hundred thousand, two hundred twenty-one".