101312022221 has 4 divisors (see below), whose sum is σ = 103029175200. Its totient is φ = 99594869244.

The previous prime is 101312022187. The next prime is 101312022241. The reversal of 101312022221 is 122220213101.

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 a cyclic number.

It is not a de Polignac number, because 101312022221 - 2³⁰ = 100238280397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101312022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101312022241) 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, 858576401 + ... + 858576518.

It is an arithmetic number, because the mean of its divisors is an integer number (25757293800).

Almost surely, 2^101312022221 is an apocalyptic number.

It is an amenable number.

101312022221 is a deficient number, since it is larger than the sum of its proper divisors (1717152979).

101312022221 is an equidigital number, since it uses as much as digits as its factorization.

101312022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717152978.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101312022221 its reverse (122220213101), we get a palindrome (223532235322).

The spelling of 101312022221 in words is "one hundred one billion, three hundred twelve million, twenty-two thousand, two hundred twenty-one".