11122221121100 has 36 divisors (see below), whose sum is σ = 24590601350784. Its totient is φ = 4364947154880.

The previous prime is 11122221121031. The next prime is 11122221121127. The reversal of 11122221121100 is 112112222111.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1049260844 + ... + 1049271443.

It is an arithmetic number, because the mean of its divisors is an integer number (683072259744).

Almost surely, 2^{11122221121100} is an apocalyptic number.

11122221121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122221121100 is an abundant number, since it is smaller than the sum of its proper divisors (13468380229684).

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

11122221121100 is a wasteful number, since it uses less digits than its factorization.

11122221121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098532354 (or 2098532347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11122221121100 its reverse (112112222111), we get a palindrome (11234333343211).

It can be divided in two parts, 1112222 and 1121100, that added together give a palindrome (2233322).

The spelling of 11122221121100 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred".