2221112110120 has 32 divisors (see below), whose sum is σ = 4997548620000. Its totient is φ = 888436600128.

The previous prime is 2221112110117. The next prime is 2221112110159. The reversal of 2221112110120 is 210112111222.

It is a junction number, because it is equal to n+sod(n) for n = 2221112110094 and 2221112110103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5959087 + ... + 6320833.

It is an arithmetic number, because the mean of its divisors is an integer number (156173394375).

Almost surely, 2^{2221112110120} is an apocalyptic number.

2221112110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221112110120 is an abundant number, since it is smaller than the sum of its proper divisors (2776436509880).

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

2221112110120 is a wasteful number, since it uses less digits than its factorization.

2221112110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515257 (or 515253 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2221112110120 its reverse (210112111222), we get a palindrome (2431224221342).

The spelling of 2221112110120 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, one hundred ten thousand, one hundred twenty".