1101201221209 has 24 divisors (see below), whose sum is σ = 1198840956000. Its totient is φ = 1008677136960.

The previous prime is 1101201221207. The next prime is 1101201221243. The reversal of 1101201221209 is 9021221021011.

It is not a de Polignac number, because 1101201221209 - 2¹ = 1101201221207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101201221209.

It is not an unprimeable number, because it can be changed into a prime (1101201221207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20587702 + ... + 20641120.

It is an arithmetic number, because the mean of its divisors is an integer number (49951706500).

Almost surely, 2^{1101201221209} is an apocalyptic number.

1101201221209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1101201221209 is a deficient number, since it is larger than the sum of its proper divisors (97639734791).

1101201221209 is a wasteful number, since it uses less digits than its factorization.

1101201221209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54629 (or 54598 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1101201221209 in words is "one trillion, one hundred one billion, two hundred one million, two hundred twenty-one thousand, two hundred nine".