1100021322120 has 64 divisors (see below), whose sum is σ = 3771501678720. Its totient is φ = 251433444864.

The previous prime is 1100021322031. The next prime is 1100021322157. The reversal of 1100021322120 is 212231200011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1100021322120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654773757 + ... + 654775436.

It is an arithmetic number, because the mean of its divisors is an integer number (58929713730).

Almost surely, 2^{1100021322120} is an apocalyptic number.

1100021322120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100021322120 is an abundant number, since it is smaller than the sum of its proper divisors (2671480356600).

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

1100021322120 is a wasteful number, since it uses less digits than its factorization.

1100021322120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309549214 (or 1309549210 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1100021322120 its reverse (212231200011), we get a palindrome (1312252522131).

It can be divided in two parts, 1100021 and 322120, that added together give a triangular number (1422141 = T₁₆₈₆).

The spelling of 1100021322120 in words is "one trillion, one hundred billion, twenty-one million, three hundred twenty-two thousand, one hundred twenty".