1222001022009 has 16 divisors (see below), whose sum is σ = 1648768752000. Its totient is φ = 805006980096.

The previous prime is 1222001021999. The next prime is 1222001022023. The reversal of 1222001022009 is 9002201002221.

It is a happy number.

It is not a de Polignac number, because 1222001022009 - 2²¹ = 1221998924857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222002022009) 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, 6996069 + ... + 7168610.

It is an arithmetic number, because the mean of its divisors is an integer number (103048047000).

Almost surely, 2^{1222001022009} is an apocalyptic number.

It is an amenable number.

1222001022009 is a deficient number, since it is larger than the sum of its proper divisors (426767729991).

1222001022009 is a wasteful number, since it uses less digits than its factorization.

1222001022009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14165024.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 1222001022009 in words is "one trillion, two hundred twenty-two billion, one million, twenty-two thousand, nine".