220321112130 has 160 divisors (see below), whose sum is σ = 678539765376. Its totient is φ = 50248325376.

The previous prime is 220321112129. The next prime is 220321112131. The reversal of 220321112130 is 31211123022.

220321112130 is a `hidden beast` number, since 220 + 321 + 1 + 121 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (220321112129) and next prime (220321112131).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220321112131) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2548677 + ... + 2633703.

Almost surely, 2^220321112130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220321112130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339269882688).

220321112130 is an abundant number, since it is smaller than the sum of its proper divisors (458218653246).

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

220321112130 is a wasteful number, since it uses less digits than its factorization.

220321112130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85510 (or 85501 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 220321112130 its reverse (31211123022), we get a palindrome (251532235152).

The spelling of 220321112130 in words is "two hundred twenty billion, three hundred twenty-one million, one hundred twelve thousand, one hundred thirty".