1000220333120 has 28 divisors (see below), whose sum is σ = 2381774669004. Its totient is φ = 400088133120.

The previous prime is 1000220333117. The next prime is 1000220333129. The reversal of 1000220333120 is 213330220001.

It can be written as a sum of positive squares in 2 ways, for example, as 427946238976 + 572274094144 = 654176^2 + 756488^2 .

It is not an unprimeable number, because it can be changed into a prime (1000220333129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1562843951 + ... + 1562844590.

Almost surely, 2^{1000220333120} is an apocalyptic number.

1000220333120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000220333120 is an abundant number, since it is smaller than the sum of its proper divisors (1381554335884).

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

1000220333120 is an equidigital number, since it uses as much as digits as its factorization.

1000220333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125688558 (or 3125688548 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1000220333120 its reverse (213330220001), we get a palindrome (1213550553121).

The spelling of 1000220333120 in words is "one trillion, two hundred twenty million, three hundred thirty-three thousand, one hundred twenty".