2118122 has 4 divisors (see below), whose sum is σ = 3177186. Its totient is φ = 1059060.

The previous prime is 2118121. The next prime is 2118163. The reversal of 2118122 is 2218112.

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., 1615441 + 502681 = 1271^2 + 709^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2118122.

It is not an unprimeable number, because it can be changed into a prime (2118121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529529 + ... + 529532.

2^2118122 is an apocalyptic number.

2118122 is a deficient number, since it is larger than the sum of its proper divisors (1059064).

2118122 is a wasteful number, since it uses less digits than its factorization.

2118122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059063.

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

The square root of 2118122 is about 1455.3769271223. The cubic root of 2118122 is about 128.4252215734.

The spelling of 2118122 in words is "two million, one hundred eighteen thousand, one hundred twenty-two".