1111220121130 has 32 divisors (see below), whose sum is σ = 2385327170304. Its totient is φ = 364424983296.

The previous prime is 1111220121113. The next prime is 1111220121131. The reversal of 1111220121130 is 311210221111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1111220121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345097807 + ... + 345101026.

It is an arithmetic number, because the mean of its divisors is an integer number (74541474072).

Almost surely, 2^{1111220121130} is an apocalyptic number.

1111220121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111220121130 is an abundant number, since it is smaller than the sum of its proper divisors (1274107049174).

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

1111220121130 is a wasteful number, since it uses less digits than its factorization.

1111220121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690198870.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1111220121130 its reverse (311210221111), we get a palindrome (1422430342241).

The spelling of 1111220121130 in words is "one trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty-one thousand, one hundred thirty".