11100121020120 has 128 divisors (see below), whose sum is σ = 36430581565440. Its totient is φ = 2683315261440.

The previous prime is 11100121020119. The next prime is 11100121020167. The reversal of 11100121020120 is 2102012100111.

It is a super-2 number, since 2×11100121020120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11100121020096 and 11100121020105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11445064 + ... + 12376983.

It is an arithmetic number, because the mean of its divisors is an integer number (284613918480).

Almost surely, 2^{11100121020120} is an apocalyptic number.

11100121020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100121020120 is an abundant number, since it is smaller than the sum of its proper divisors (25330460545320).

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

11100121020120 is a wasteful number, since it uses less digits than its factorization.

11100121020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23822425 (or 23822421 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11100121020120 its reverse (2102012100111), we get a palindrome (13202133120231).

The spelling of 11100121020120 in words is "eleven trillion, one hundred billion, one hundred twenty-one million, twenty thousand, one hundred twenty".