2122866 has 12 divisors (see below), whose sum is σ = 4599582. Its totient is φ = 707616.

The previous prime is 2122859. The next prime is 2122873. The reversal of 2122866 is 6682212.

It is an interprime number because it is at equal distance from previous prime (2122859) and next prime (2122873).

It can be written as a sum of positive squares in only one way, i.e., 1490841 + 632025 = 1221^2 + 795^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58951 + ... + 58986.

2^2122866 is an apocalyptic number.

2122866 is an abundant number, since it is smaller than the sum of its proper divisors (2476716).

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

2122866 is a wasteful number, since it uses less digits than its factorization.

2122866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117945 (or 117942 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2122866 is about 1457.0058338936. The cubic root of 2122866 is about 128.5210289233.

The spelling of 2122866 in words is "two million, one hundred twenty-two thousand, eight hundred sixty-six".