11111121020110 has 32 divisors (see below), whose sum is σ = 20488337251200. Its totient is φ = 4335938423040.

The previous prime is 11111121020063. The next prime is 11111121020119. The reversal of 11111121020110 is 1102012111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111121020119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17109931 + ... + 17747449.

It is an arithmetic number, because the mean of its divisors is an integer number (640260539100).

Almost surely, 2^{11111121020110} is an apocalyptic number.

11111121020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111121020110 is a deficient number, since it is larger than the sum of its proper divisors (9377216231090).

11111121020110 is a wasteful number, since it uses less digits than its factorization.

11111121020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680076.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11111121020110 its reverse (1102012111111), we get a palindrome (12213133131221).

The spelling of 11111121020110 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-one million, twenty thousand, one hundred ten".