218220848422152 has 32 divisors (see below), whose sum is σ = 545662713713280. Its totient is φ = 72725537119680.

The previous prime is 218220848422081. The next prime is 218220848422153. The reversal of 218220848422152 is 251224848022812.

It is a super-2 number, since 2×218220848422152² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 218220848422095 and 218220848422104.

It is not an unprimeable number, because it can be changed into a prime (218220848422153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921484624 + ... + 921721407.

It is an arithmetic number, because the mean of its divisors is an integer number (17051959803540).

Almost surely, 2^{218220848422152} is an apocalyptic number.

It is an amenable number.

218220848422152 is an abundant number, since it is smaller than the sum of its proper divisors (327441865291128).

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

218220848422152 is a wasteful number, since it uses less digits than its factorization.

218220848422152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843210973 (or 1843210969 counting only the distinct ones).

The product of its (nonzero) digits is 2621440, while the sum is 51.

The spelling of 218220848422152 in words is "two hundred eighteen trillion, two hundred twenty billion, eight hundred forty-eight million, four hundred twenty-two thousand, one hundred fifty-two".