1222856118120 has 128 divisors (see below), whose sum is σ = 4515161091840. Its totient is φ = 258009200640.

The previous prime is 1222856118091. The next prime is 1222856118157. The reversal of 1222856118120 is 218116582221.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 55980661 + ... + 56002500.

It is an arithmetic number, because the mean of its divisors is an integer number (35274696030).

Almost surely, 2^{1222856118120} is an apocalyptic number.

1222856118120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222856118120 is an abundant number, since it is smaller than the sum of its proper divisors (3292304973720).

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

1222856118120 is a wasteful number, since it uses less digits than its factorization.

1222856118120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111983195 (or 111983191 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 1222856118120 in words is "one trillion, two hundred twenty-two billion, eight hundred fifty-six million, one hundred eighteen thousand, one hundred twenty".