218782005212 has 12 divisors (see below), whose sum is σ = 383648285496. Its totient is φ = 109168209360.

The previous prime is 218782005199. The next prime is 218782005217. The reversal of 218782005212 is 212500287812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218782005217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55696103 + ... + 55700030.

It is an arithmetic number, because the mean of its divisors is an integer number (31970690458).

Almost surely, 2^218782005212 is an apocalyptic number.

It is an amenable number.

218782005212 is a deficient number, since it is larger than the sum of its proper divisors (164866280284).

218782005212 is a wasteful number, since it uses less digits than its factorization.

218782005212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111396628 (or 111396626 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 218782005212 in words is "two hundred eighteen billion, seven hundred eighty-two million, five thousand, two hundred twelve".