1222221200120 has 64 divisors (see below), whose sum is σ = 2821496721120. Its totient is φ = 476238518784.

The previous prime is 1222221200111. The next prime is 1222221200143. The reversal of 1222221200120 is 210021222221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310979 + ... + 1594098.

Almost surely, 2^{1222221200120} is an apocalyptic number.

1222221200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222221200120 is an abundant number, since it is smaller than the sum of its proper divisors (1599275521000).

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

1222221200120 is a wasteful number, since it uses less digits than its factorization.

1222221200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905504 (or 1905500 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222221200120 its reverse (210021222221), we get a palindrome (1432242422341).

The spelling of 1222221200120 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred thousand, one hundred twenty".