11120001221000 has 64 divisors (see below), whose sum is σ = 29738060426880. Its totient is φ = 3812571844800.

The previous prime is 11120001220987. The next prime is 11120001221003. The reversal of 11120001221000 is 12210002111.

It is not an unprimeable number, because it can be changed into a prime (11120001221003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794278802 + ... + 794292801.

It is an arithmetic number, because the mean of its divisors is an integer number (464657194170).

Almost surely, 2^{11120001221000} is an apocalyptic number.

11120001221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11120001221000 is an abundant number, since it is smaller than the sum of its proper divisors (18618059205880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11120001221000 is a wasteful number, since it uses less digits than its factorization.

11120001221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588571631 (or 1588571617 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11120001221000 its reverse (12210002111), we get a palindrome (11132211223111).

The spelling of 11120001221000 in words is "eleven trillion, one hundred twenty billion, one million, two hundred twenty-one thousand".