2120010218 has 4 divisors (see below), whose sum is σ = 3180015330. Its totient is φ = 1060005108.

The previous prime is 2120010197. The next prime is 2120010227. The reversal of 2120010218 is 8120100212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2045481529 + 74528689 = 45227^2 + 8633^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2120010196 and 2120010205.

It is an unprimeable number.

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, 530002553 + ... + 530002556.

Almost surely, 2^2120010218 is an apocalyptic number.

2120010218 is a deficient number, since it is larger than the sum of its proper divisors (1060005112).

2120010218 is a wasteful number, since it uses less digits than its factorization.

2120010218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060005111.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 2120010218 is about 46043.5686931411. The cubic root of 2120010218 is about 1284.6337216032.

The spelling of 2120010218 in words is "two billion, one hundred twenty million, ten thousand, two hundred eighteen".