2201102202221 has 4 divisors (see below), whose sum is σ = 2370417756252. Its totient is φ = 2031786648192.

The previous prime is 2201102202161. The next prime is 2201102202253. The reversal of 2201102202221 is 1222022011022.

It is a happy number.

2201102202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210392846596 + 1990709355625 = 458686^2 + 1410925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201102202221 - 2¹⁸ = 2201101940077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201102202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201102202281) 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, 84657776996 + ... + 84657777021.

It is an arithmetic number, because the mean of its divisors is an integer number (592604439063).

Almost surely, 2^{2201102202221} is an apocalyptic number.

It is an amenable number.

2201102202221 is a deficient number, since it is larger than the sum of its proper divisors (169315554031).

2201102202221 is a wasteful number, since it uses less digits than its factorization.

2201102202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169315554030.

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

Adding to 2201102202221 its reverse (1222022011022), we get a palindrome (3423124213243).

The spelling of 2201102202221 in words is "two trillion, two hundred one billion, one hundred two million, two hundred two thousand, two hundred twenty-one".