2122818 has 32 divisors (see below), whose sum is σ = 4465152. Its totient is φ = 672000.

The previous prime is 2122817. The next prime is 2122823. The reversal of 2122818 is 8182212.

It is a super-2 number, since 2×2122818² = 9012712522248, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁰ + 1 + 2¹³ + 2¹⁴ + 8² + 1 + 8⁷ .

It is not an unprimeable number, because it can be changed into a prime (2122817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18730 + ... + 18842.

It is an arithmetic number, because the mean of its divisors is an integer number (139536).

2^2122818 is an apocalyptic number.

2122818 is an abundant number, since it is smaller than the sum of its proper divisors (2342334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122818 is a wasteful number, since it uses less digits than its factorization.

2122818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 512, while the sum is 24.

The square root of 2122818 is about 1456.9893616633. The cubic root of 2122818 is about 128.5200602555.

The spelling of 2122818 in words is "two million, one hundred twenty-two thousand, eight hundred eighteen".