2188520022 has 32 divisors (see below), whose sum is σ = 4717143648. Its totient is φ = 672903936.

The previous prime is 2188520021. The next prime is 2188520023. The reversal of 2188520022 is 2200258812.

It is an interprime number because it is at equal distance from previous prime (2188520021) and next prime (2188520023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188520021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107058 + ... + 125850.

It is an arithmetic number, because the mean of its divisors is an integer number (147410739).

Almost surely, 2^2188520022 is an apocalyptic number.

2188520022 is an abundant number, since it is smaller than the sum of its proper divisors (2528623626).

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

2188520022 is a wasteful number, since it uses less digits than its factorization.

2188520022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20304.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 2188520022 is about 46781.6205576506. The cubic root of 2188520022 is about 1298.3252639463.

Adding to 2188520022 its reverse (2200258812), we get a palindrome (4388778834).

The spelling of 2188520022 in words is "two billion, one hundred eighty-eight million, five hundred twenty thousand, twenty-two".