101022210201221 has 4 divisors (see below), whose sum is σ = 106964693154252. Its totient is φ = 95079727248192.

The previous prime is 101022210201203. The next prime is 101022210201343. The reversal of 101022210201221 is 122102012220101.

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 57357735633121 + 43664474568100 = 7573489^2 + 6607910^2 .

It is a cyclic number.

It is not a de Polignac number, because 101022210201221 - 2¹⁴ = 101022210184837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 5942482953013 = 101022210201221 / (1 + 0 + 1 + 0 + 2 + 2 + 2 + 1 + 0 + 2 + 0 + 1 + 2 + 2 + 1).

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 101022210201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022210201421) 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, 2971241476490 + ... + 2971241476523.

It is an arithmetic number, because the mean of its divisors is an integer number (26741173288563).

Almost surely, 2^{101022210201221} is an apocalyptic number.

It is an amenable number.

101022210201221 is a deficient number, since it is larger than the sum of its proper divisors (5942482953031).

101022210201221 is an equidigital number, since it uses as much as digits as its factorization.

101022210201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942482953030.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101022210201221 its reverse (122102012220101), we get a palindrome (223124222421322).

The spelling of 101022210201221 in words is "one hundred one trillion, twenty-two billion, two hundred ten million, two hundred one thousand, two hundred twenty-one".