218696012 has 6 divisors (see below), whose sum is σ = 382718028. Its totient is φ = 109348004.

The previous prime is 218695999. The next prime is 218696021. The reversal of 218696012 is 210696812.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27336998 + ... + 27337005.

It is an arithmetic number, because the mean of its divisors is an integer number (63786338).

Almost surely, 2^218696012 is an apocalyptic number.

It is an amenable number.

218696012 is a deficient number, since it is larger than the sum of its proper divisors (164022016).

218696012 is a wasteful number, since it uses less digits than its factorization.

218696012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54674007 (or 54674005 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 218696012 is about 14788.3742176076. The cubic root of 218696012 is about 602.4859929137.

The spelling of 218696012 in words is "two hundred eighteen million, six hundred ninety-six thousand, twelve".