218228886292 has 6 divisors (see below), whose sum is σ = 381900551018. Its totient is φ = 109114443144.

The previous prime is 218228886269. The next prime is 218228886299. The reversal of 218228886292 is 292688822812.

218228886292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 184447916676 + 33780969616 = 429474^2 + 183796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218228886299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27278610783 + ... + 27278610790.

Almost surely, 2^218228886292 is an apocalyptic number.

It is an amenable number.

218228886292 is a deficient number, since it is larger than the sum of its proper divisors (163671664726).

218228886292 is a wasteful number, since it uses less digits than its factorization.

218228886292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54557221577 (or 54557221575 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 58.

The spelling of 218228886292 in words is "two hundred eighteen billion, two hundred twenty-eight million, eight hundred eighty-six thousand, two hundred ninety-two".