1100120122000 has 80 divisors (see below), whose sum is σ = 2671707682800. Its totient is φ = 438126259200.

The previous prime is 1100120121959. The next prime is 1100120122021. The reversal of 1100120122000 is 2210210011.

It can be written as a sum of positive squares in 8 ways, for example, as 78823931536 + 1021296190464 = 280756^2 + 1010592^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743005 + ... + 1659004.

It is an arithmetic number, because the mean of its divisors is an integer number (33396346035).

Almost surely, 2^{1100120122000} is an apocalyptic number.

1100120122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100120122000 is an abundant number, since it is smaller than the sum of its proper divisors (1571587560800).

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

1100120122000 is a wasteful number, since it uses less digits than its factorization.

1100120122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402261 (or 2402245 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1100120122000 its reverse (2210210011), we get a palindrome (1102330332011).

The spelling of 1100120122000 in words is "one trillion, one hundred billion, one hundred twenty million, one hundred twenty-two thousand".