112221211121120 has 48 divisors (see below), whose sum is σ = 265129664849280. Its totient is φ = 44887290192384.

The previous prime is 112221211121093. The next prime is 112221211121183. The reversal of 112221211121120 is 21121112122211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112221211121092 and 112221211121101.

It is a congruent number.

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, 3285215 + ... + 15337374.

It is an arithmetic number, because the mean of its divisors is an integer number (5523534684360).

Almost surely, 2^{112221211121120} is an apocalyptic number.

112221211121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112221211121120 is an abundant number, since it is smaller than the sum of its proper divisors (152908453728160).

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

112221211121120 is a wasteful number, since it uses less digits than its factorization.

112221211121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18660267 (or 18660259 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 112221211121120 its reverse (21121112122211), we get a palindrome (133342323243331).

The spelling of 112221211121120 in words is "one hundred twelve trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twenty".