11100121220112 has 20 divisors (see below), whose sum is σ = 28675313152080. Its totient is φ = 3700040406688.

The previous prime is 11100121220101. The next prime is 11100121220147. The reversal of 11100121220112 is 21102212100111.

It is a happy number.

It is a super-2 number, since 2×11100121220112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11100121220091 and 11100121220100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115626262662 + ... + 115626262757.

It is an arithmetic number, because the mean of its divisors is an integer number (1433765657604).

Almost surely, 2^{11100121220112} is an apocalyptic number.

11100121220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11100121220112 is an abundant number, since it is smaller than the sum of its proper divisors (17575191931968).

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

11100121220112 is a wasteful number, since it uses less digits than its factorization.

11100121220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231252525430 (or 231252525424 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11100121220112 its reverse (21102212100111), we get a palindrome (32202333320223).

The spelling of 11100121220112 in words is "eleven trillion, one hundred billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twelve".