1222012122120 has 96 divisors (see below), whose sum is σ = 4180567809600. Its totient is φ = 308718850176.

The previous prime is 1222012122103. The next prime is 1222012122169. The reversal of 1222012122120 is 212212102221.

It is a happy number.

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 = 1222012122093 and 1222012122102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89321532 + ... + 89335211.

It is an arithmetic number, because the mean of its divisors is an integer number (43547581350).

Almost surely, 2^{1222012122120} is an apocalyptic number.

1222012122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222012122120 is an abundant number, since it is smaller than the sum of its proper divisors (2958555687480).

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

1222012122120 is a wasteful number, since it uses less digits than its factorization.

1222012122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178656779 (or 178656772 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1222012122120 its reverse (212212102221), we get a palindrome (1434224224341).

The spelling of 1222012122120 in words is "one trillion, two hundred twenty-two billion, twelve million, one hundred twenty-two thousand, one hundred twenty".