1222101220209 has 16 divisors (see below), whose sum is σ = 1634461545600. Its totient is φ = 812239584896.

The previous prime is 1222101220163. The next prime is 1222101220211. The reversal of 1222101220209 is 9020221012221.

It is a cyclic number.

It is not a de Polignac number, because 1222101220209 - 2²¹ = 1222099123057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222101220289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2122717 + ... + 2636309.

It is an arithmetic number, because the mean of its divisors is an integer number (102153846600).

Almost surely, 2^{1222101220209} is an apocalyptic number.

It is an amenable number.

1222101220209 is a deficient number, since it is larger than the sum of its proper divisors (412360325391).

1222101220209 is a wasteful number, since it uses less digits than its factorization.

1222101220209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516024.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 1222101220209 in words is "one trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty thousand, two hundred nine".