1120001021100 has 216 divisors, whose sum is σ = 3920649947760. Its totient is φ = 275692481280.

The previous prime is 1120001021047. The next prime is 1120001021123. The reversal of 1120001021100 is 11201000211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1456815 + ... + 2088614.

Almost surely, 2^{1120001021100} is an apocalyptic number.

1120001021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120001021100 is an abundant number, since it is smaller than the sum of its proper divisors (2800648926660).

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

1120001021100 is a wasteful number, since it uses less digits than its factorization.

1120001021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545471 (or 3545452 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1120001021100 its reverse (11201000211), we get a palindrome (1131202021311).

The spelling of 1120001021100 in words is "one trillion, one hundred twenty billion, one million, twenty-one thousand, one hundred".