218202220060 has 48 divisors (see below), whose sum is σ = 509313202272. Its totient is φ = 77849158400.

The previous prime is 218202220039. The next prime is 218202220091. The reversal of 218202220060 is 60022202812.

It is a super-2 number, since 2×218202220060² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9345211 + ... + 9368530.

It is an arithmetic number, because the mean of its divisors is an integer number (10610691714).

Almost surely, 2^218202220060 is an apocalyptic number.

218202220060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218202220060 is an abundant number, since it is smaller than the sum of its proper divisors (291110982212).

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

218202220060 is a wasteful number, since it uses less digits than its factorization.

218202220060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18713814 (or 18713812 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 218202220060 its reverse (60022202812), we get a palindrome (278224422872).

The spelling of 218202220060 in words is "two hundred eighteen billion, two hundred two million, two hundred twenty thousand, sixty".