1100121330120 has 64 divisors (see below), whose sum is σ = 3414169656000. Its totient is φ = 283249628928.

The previous prime is 1100121330073. The next prime is 1100121330169. The reversal of 1100121330120 is 210331210011.

It is a happy number.

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 1100121330120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158059930 + ... + 158066889.

It is an arithmetic number, because the mean of its divisors is an integer number (53346400875).

Almost surely, 2^{1100121330120} is an apocalyptic number.

1100121330120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100121330120 is an abundant number, since it is smaller than the sum of its proper divisors (2314048325880).

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

1100121330120 is a wasteful number, since it uses less digits than its factorization.

1100121330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316126862 (or 316126858 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1100121330120 its reverse (210331210011), we get a palindrome (1310452540131).

The spelling of 1100121330120 in words is "one trillion, one hundred billion, one hundred twenty-one million, three hundred thirty thousand, one hundred twenty".