2212120018 has 8 divisors (see below), whose sum is σ = 3320490240. Its totient is φ = 1105289940.

The previous prime is 2212119983. The next prime is 2212120069. The reversal of 2212120018 is 8100212122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2212119977 and 2212120004.

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, 381438 + ... + 387193.

It is an arithmetic number, because the mean of its divisors is an integer number (415061280).

Almost surely, 2^2212120018 is an apocalyptic number.

2212120018 is a deficient number, since it is larger than the sum of its proper divisors (1108370222).

2212120018 is a wasteful number, since it uses less digits than its factorization.

2212120018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770072.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 2212120018 is about 47033.1799690389. The cubic root of 2212120018 is about 1302.9754367033.

The spelling of 2212120018 in words is "two billion, two hundred twelve million, one hundred twenty thousand, eighteen".