220220031000 has 128 divisors (see below), whose sum is σ = 687504542400. Its totient is φ = 58689612800.

The previous prime is 220220030999. The next prime is 220220031001. The reversal of 220220031000 is 130022022.

It is an interprime number because it is at equal distance from previous prime (220220030999) and next prime (220220031001).

It is a super-2 number, since 2×220220031000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220031001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5105524 + ... + 5148476.

Almost surely, 2^220220031000 is an apocalyptic number.

220220031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220220031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343752271200).

220220031000 is an abundant number, since it is smaller than the sum of its proper divisors (467284511400).

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

220220031000 is a wasteful number, since it uses less digits than its factorization.

220220031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44686 (or 44672 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 220220031000 its reverse (130022022), we get a palindrome (220350053022).

The spelling of 220220031000 in words is "two hundred twenty billion, two hundred twenty million, thirty-one thousand".