110121221111220 has 96 divisors (see below), whose sum is σ = 373744750458240. Its totient is φ = 26696053601280.

The previous prime is 110121221111183. The next prime is 110121221111323. The reversal of 110121221111220 is 22111122121011.

It is a happy number.

110121221111220 is a `hidden beast` number, since 1 + 10 + 1 + 212 + 211 + 11 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 110121221111193 and 110121221111202.

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, 9269457117 + ... + 9269468996.

It is an arithmetic number, because the mean of its divisors is an integer number (3893174483940).

Almost surely, 2^{110121221111220} is an apocalyptic number.

110121221111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110121221111220 is an abundant number, since it is smaller than the sum of its proper divisors (263623529347020).

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

110121221111220 is a wasteful number, since it uses less digits than its factorization.

110121221111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18538926142 (or 18538926134 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 110121221111220 its reverse (22111122121011), we get a palindrome (132232343232231).

The spelling of 110121221111220 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty".