2210120222221 has 4 divisors (see below), whose sum is σ = 2326442339200. Its totient is φ = 2093798105244.

The previous prime is 2210120222209. The next prime is 2210120222231. The reversal of 2210120222221 is 1222220210122.

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 not a de Polignac number, because 2210120222221 - 2²¹ = 2210118125069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 116322116959 = 2210120222221 / (2 + 2 + 1 + 0 + 1 + 2 + 0 + 2 + 2 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210120222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58161058461 + ... + 58161058498.

It is an arithmetic number, because the mean of its divisors is an integer number (581610584800).

Almost surely, 2^{2210120222221} is an apocalyptic number.

It is an amenable number.

2210120222221 is a deficient number, since it is larger than the sum of its proper divisors (116322116979).

2210120222221 is a wasteful number, since it uses less digits than its factorization.

2210120222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116322116978.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2210120222221 its reverse (1222220210122), we get a palindrome (3432340432343).

The spelling of 2210120222221 in words is "two trillion, two hundred ten billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-one".