2201000222221 has 4 divisors (see below), whose sum is σ = 2316842339200. Its totient is φ = 2085158105244.

The previous prime is 2201000222203. The next prime is 2201000222227. The reversal of 2201000222221 is 1222220001022.

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 2201000222221 - 2¹⁹ = 2200999697933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201000222195 and 2201000222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201000222227) 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, 57921058461 + ... + 57921058498.

It is an arithmetic number, because the mean of its divisors is an integer number (579210584800).

Almost surely, 2^{2201000222221} is an apocalyptic number.

It is an amenable number.

2201000222221 is a deficient number, since it is larger than the sum of its proper divisors (115842116979).

2201000222221 is a wasteful number, since it uses less digits than its factorization.

2201000222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115842116978.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2201000222221 its reverse (1222220001022), we get a palindrome (3423220223243).

The spelling of 2201000222221 in words is "two trillion, two hundred one billion, two hundred twenty-two thousand, two hundred twenty-one".