1012120002220 has 24 divisors (see below), whose sum is σ = 2125864689984. Its totient is φ = 404769394176.

The previous prime is 1012120002217. The next prime is 1012120002239. The reversal of 1012120002220 is 222000212101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012120002220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4807284 + ... + 5013403.

It is an arithmetic number, because the mean of its divisors is an integer number (88577695416).

Almost surely, 2^{1012120002220} is an apocalyptic number.

1012120002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012120002220 is an abundant number, since it is smaller than the sum of its proper divisors (1113744687764).

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

1012120002220 is a wasteful number, since it uses less digits than its factorization.

1012120002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825849 (or 9825847 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1012120002220 its reverse (222000212101), we get a palindrome (1234120214321).

The spelling of 1012120002220 in words is "one trillion, twelve billion, one hundred twenty million, two thousand, two hundred twenty".