2111221222 has 8 divisors (see below), whose sum is σ = 3454725672. Its totient is φ = 959646000.

The previous prime is 2111221219. The next prime is 2111221253. The reversal of 2111221222 is 2221221112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2111221196 and 2111221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47982279 + ... + 47982322.

It is an arithmetic number, because the mean of its divisors is an integer number (431840709).

Almost surely, 2^2111221222 is an apocalyptic number.

2111221222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2111221222 is a deficient number, since it is larger than the sum of its proper divisors (1343504450).

2111221222 is a wasteful number, since it uses less digits than its factorization.

2111221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95964614.

The product of its digits is 64, while the sum is 16.

The square root of 2111221222 is about 45948.0274005316. The cubic root of 2111221222 is about 1282.8560132947.

Adding to 2111221222 its reverse (2221221112), we get a palindrome (4332442334).

The spelling of 2111221222 in words is "two billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".