2211221222219 has 4 divisors (see below), whose sum is σ = 2211271372200. Its totient is φ = 2211171072240.

The previous prime is 2211221222131. The next prime is 2211221222239. The reversal of 2211221222219 is 9122221221122.

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

It is a cyclic number.

It is not a de Polignac number, because 2211221222219 - 2¹² = 2211221218123 is a prime.

It is a super-2 number, since 2×2211221222219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211221222191 and 2211221222200.

It is not an unprimeable number, because it can be changed into a prime (2211221222239) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 25008794 + ... + 25097055.

It is an arithmetic number, because the mean of its divisors is an integer number (552817843050).

Almost surely, 2^{2211221222219} is an apocalyptic number.

2211221222219 is a deficient number, since it is larger than the sum of its proper divisors (50149981).

2211221222219 is an equidigital number, since it uses as much as digits as its factorization.

2211221222219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50149980.

The product of its digits is 2304, while the sum is 29.

The spelling of 2211221222219 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred nineteen".