1110221121100 has 108 divisors (see below), whose sum is σ = 3018093590064. Its totient is φ = 351366664320.

The previous prime is 1110221121071. The next prime is 1110221121101. The reversal of 1110221121100 is 11211220111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1110221121101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8650752 + ... + 8778151.

Almost surely, 2^{1110221121100} is an apocalyptic number.

1110221121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110221121100 is an abundant number, since it is smaller than the sum of its proper divisors (1907872468964).

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

1110221121100 is a wasteful number, since it uses less digits than its factorization.

1110221121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17428944 (or 17428930 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110221121100 its reverse (11211220111), we get a palindrome (1121432341211).

It can be divided in two parts, 1110221 and 121100, that added together give a palindrome (1231321).

The spelling of 1110221121100 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred".