2210222100221 has 4 divisors (see below), whose sum is σ = 2326549579200. Its totient is φ = 2093894621244.

The previous prime is 2210222100187. The next prime is 2210222100253. The reversal of 2210222100221 is 1220012220122.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-2210222100221 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 2210222100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210222100271) 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, 58163739461 + ... + 58163739498.

It is an arithmetic number, because the mean of its divisors is an integer number (581637394800).

Almost surely, 2^{2210222100221} is an apocalyptic number.

It is an amenable number.

2210222100221 is a deficient number, since it is larger than the sum of its proper divisors (116327478979).

2210222100221 is a wasteful number, since it uses less digits than its factorization.

2210222100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116327478978.

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

Adding to 2210222100221 its reverse (1220012220122), we get a palindrome (3430234320343).

The spelling of 2210222100221 in words is "two trillion, two hundred ten billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-one".