1220002222120 has 32 divisors (see below), whose sum is σ = 2994550909920. Its totient is φ = 443637171520.

The previous prime is 1220002222093. The next prime is 1220002222163. The reversal of 1220002222120 is 212222000221.

It is a junction number, because it is equal to n+sod(n) for n = 1220002222094 and 1220002222103.

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, 1386365722 + ... + 1386366601.

It is an arithmetic number, because the mean of its divisors is an integer number (93579715935).

Almost surely, 2^{1220002222120} is an apocalyptic number.

1220002222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220002222120 is an abundant number, since it is smaller than the sum of its proper divisors (1774548687800).

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

1220002222120 is a wasteful number, since it uses less digits than its factorization.

1220002222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772732345 (or 2772732341 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1220002222120 its reverse (212222000221), we get a palindrome (1432224222341).

The spelling of 1220002222120 in words is "one trillion, two hundred twenty billion, two million, two hundred twenty-two thousand, one hundred twenty".