1201222222109 has 64 divisors (see below), whose sum is σ = 1555714621440. Its totient is φ = 902063900160.

The previous prime is 1201222222099. The next prime is 1201222222117. The reversal of 1201222222109 is 9012222221021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201222222109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222222309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36845714 + ... + 36878300.

It is an arithmetic number, because the mean of its divisors is an integer number (24308040960).

Almost surely, 2^{1201222222109} is an apocalyptic number.

It is an amenable number.

1201222222109 is a deficient number, since it is larger than the sum of its proper divisors (354492399331).

1201222222109 is a wasteful number, since it uses less digits than its factorization.

1201222222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32890.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 1201222222109 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred nine".