2212222221009 has 24 divisors (see below), whose sum is σ = 3282090605352. Its totient is φ = 1434825757440.

The previous prime is 2212222220939. The next prime is 2212222221059. The reversal of 2212222221009 is 9001222222122.

2212222221009 is a `hidden beast` number, since 2 + 212 + 222 + 221 + 0 + 0 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 342242550225 + 1869979670784 = 585015^2 + 1367472^2 .

It is not a de Polignac number, because 2212222221009 - 2¹⁹ = 2212221696721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2212222221059) 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 23 ways as a sum of consecutive naturals, for example, 3476487 + ... + 4063299.

It is an arithmetic number, because the mean of its divisors is an integer number (136753775223).

Almost surely, 2^{2212222221009} is an apocalyptic number.

It is an amenable number.

2212222221009 is a deficient number, since it is larger than the sum of its proper divisors (1069868384343).

2212222221009 is a wasteful number, since it uses less digits than its factorization.

2212222221009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598177 (or 598174 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 2212222221009 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, nine".