2210001221222 has 4 divisors (see below), whose sum is σ = 3315001831836. Its totient is φ = 1105000610610.

The previous prime is 2210001221137. The next prime is 2210001221257. The reversal of 2210001221222 is 2221221000122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2210001221222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552500305304 + ... + 552500305307.

It is an arithmetic number, because the mean of its divisors is an integer number (828750457959).

Almost surely, 2^{2210001221222} is an apocalyptic number.

2210001221222 is a deficient number, since it is larger than the sum of its proper divisors (1105000610614).

2210001221222 is a wasteful number, since it uses less digits than its factorization.

2210001221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105000610613.

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

Adding to 2210001221222 its reverse (2221221000122), we get a palindrome (4431222221344).

The spelling of 2210001221222 in words is "two trillion, two hundred ten billion, one million, two hundred twenty-one thousand, two hundred twenty-two".