1220202110120 has 96 divisors (see below), whose sum is σ = 3194001386280. Its totient is φ = 418314516480.

The previous prime is 1220202110089. The next prime is 1220202110147. The reversal of 1220202110120 is 210112020221.

It can be written as a sum of positive squares in 4 ways, for example, as 1172399535076 + 47802575044 = 1082774^2 + 218638^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1220202110095 and 1220202110104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25928852 + ... + 25975868.

Almost surely, 2^{1220202110120} is an apocalyptic number.

1220202110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220202110120 is an abundant number, since it is smaller than the sum of its proper divisors (1973799276160).

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

1220202110120 is a wasteful number, since it uses less digits than its factorization.

1220202110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60283 (or 60272 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220202110120 its reverse (210112020221), we get a palindrome (1430314130341).

The spelling of 1220202110120 in words is "one trillion, two hundred twenty billion, two hundred two million, one hundred ten thousand, one hundred twenty".