101222202221 has 24 divisors (see below), whose sum is σ = 119498411520. Its totient is φ = 85477103712.

The previous prime is 101222202197. The next prime is 101222202233. The reversal of 101222202221 is 122202222101.

It is a happy number.

It is not a de Polignac number, because 101222202221 - 2¹⁴ = 101222185837 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 101222202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1764035 + ... + 1820511.

It is an arithmetic number, because the mean of its divisors is an integer number (4979100480).

Almost surely, 2^101222202221 is an apocalyptic number.

It is an amenable number.

101222202221 is a deficient number, since it is larger than the sum of its proper divisors (18276209299).

101222202221 is an equidigital number, since it uses as much as digits as its factorization.

101222202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57033 (or 57026 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101222202221 its reverse (122202222101), we get a palindrome (223424424322).

The spelling of 101222202221 in words is "one hundred one billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty-one".