220220031001000 has 32 divisors (see below), whose sum is σ = 515314872544680. Its totient is φ = 88088012400000.

The previous prime is 220220031000973. The next prime is 220220031001007. The reversal of 220220031001000 is 100130022022.

It can be written as a sum of positive squares in 4 ways, for example, as 52042344265444 + 168177686735556 = 7214038^2 + 12968334^2 .

It is not an unprimeable number, because it can be changed into a prime (220220031001007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110110014501 + ... + 110110016500.

Almost surely, 2^{220220031001000} is an apocalyptic number.

220220031001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220031001000 is an abundant number, since it is smaller than the sum of its proper divisors (295094841543680).

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

220220031001000 is a wasteful number, since it uses less digits than its factorization.

220220031001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220220031022 (or 220220031008 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 220220031001000 its reverse (100130022022), we get a palindrome (220320161023022).

The spelling of 220220031001000 in words is "two hundred twenty trillion, two hundred twenty billion, thirty-one million, one thousand".