101022202002221 has 4 divisors (see below), whose sum is σ = 101036607000252. Its totient is φ = 101007797004192.

The previous prime is 101022202002203. The next prime is 101022202002247. The reversal of 101022202002221 is 122200202220101.

It is a happy number.

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 91674592849225 + 9347609152996 = 9574685^2 + 3057386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101022202002221 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 101022202002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022202022221) 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, 7202488496 + ... + 7202502521.

It is an arithmetic number, because the mean of its divisors is an integer number (25259151750063).

Almost surely, 2^{101022202002221} is an apocalyptic number.

It is an amenable number.

101022202002221 is a deficient number, since it is larger than the sum of its proper divisors (14404998031).

101022202002221 is an equidigital number, since it uses as much as digits as its factorization.

101022202002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404998030.

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

Adding to 101022202002221 its reverse (122200202220101), we get a palindrome (223222404222322).

The spelling of 101022202002221 in words is "one hundred one trillion, twenty-two billion, two hundred two million, two thousand, two hundred twenty-one".