220001130 has 64 divisors (see below), whose sum is σ = 588021120. Its totient is φ = 58531968.

The previous prime is 220001113. The next prime is 220001137. The reversal of 220001130 is 31100022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (220001137) 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, 183814 + ... + 185006.

It is an arithmetic number, because the mean of its divisors is an integer number (9187830).

Almost surely, 2^220001130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220001130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294010560).

220001130 is an abundant number, since it is smaller than the sum of its proper divisors (368019990).

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

220001130 is a wasteful number, since it uses less digits than its factorization.

220001130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 220001130 is about 14832.4350664346. The cubic root of 220001130 is about 603.6821072532.

Adding to 220001130 its reverse (31100022), we get a palindrome (251101152).

The spelling of 220001130 in words is "two hundred twenty million, one thousand, one hundred thirty".