218152120 has 16 divisors (see below), whose sum is σ = 490842360. Its totient is φ = 87260832.

The previous prime is 218152117. The next prime is 218152147. The reversal of 218152120 is 21251812.

It is a junction number, because it is equal to n+sod(n) for n = 218152091 and 218152100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2726862 + ... + 2726941.

Almost surely, 2^218152120 is an apocalyptic number.

218152120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218152120 is an abundant number, since it is smaller than the sum of its proper divisors (272690240).

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

218152120 is a wasteful number, since it uses less digits than its factorization.

218152120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453814 (or 5453810 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 218152120 is about 14769.9735951017. The cubic root of 218152120 is about 601.9861219819.

The spelling of 218152120 in words is "two hundred eighteen million, one hundred fifty-two thousand, one hundred twenty".