1101220009999 has 16 divisors (see below), whose sum is σ = 1214261971200. Its totient is φ = 994132500480.

The previous prime is 1101220009973. The next prime is 1101220010003. The reversal of 1101220009999 is 9999000221011.

It is a cyclic number.

It is not a de Polignac number, because 1101220009999 - 2³¹ = 1099072526351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101220009909) 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, 9186474 + ... + 9305575.

It is an arithmetic number, because the mean of its divisors is an integer number (75891373200).

Almost surely, 2^{1101220009999} is an apocalyptic number.

1101220009999 is a deficient number, since it is larger than the sum of its proper divisors (113041961201).

1101220009999 is a wasteful number, since it uses less digits than its factorization.

1101220009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18492210.

The product of its (nonzero) digits is 26244, while the sum is 43.

The spelling of 1101220009999 in words is "one trillion, one hundred one billion, two hundred twenty million, nine thousand, nine hundred ninety-nine".