2221122213 has 12 divisors (see below), whose sum is σ = 3347778720. Its totient is φ = 1416367656.

The previous prime is 2221122187. The next prime is 2221122229. The reversal of 2221122213 is 3122211222.

It is not a de Polignac number, because 2221122213 - 2¹⁷ = 2220991141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221122263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5364823 + ... + 5365236.

It is an arithmetic number, because the mean of its divisors is an integer number (278981560).

Almost surely, 2^2221122213 is an apocalyptic number.

2221122213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2221122213 is a deficient number, since it is larger than the sum of its proper divisors (1126656507).

2221122213 is a wasteful number, since it uses less digits than its factorization.

2221122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730088 (or 10730085 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2221122213 is about 47128.7832751918. The cubic root of 2221122213 is about 1304.7405253264.

Adding to 2221122213 its reverse (3122211222), we get a palindrome (5343333435).

The spelling of 2221122213 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred thirteen".