2121086 has 16 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 949080.

The previous prime is 2121043. The next prime is 2121121. The reversal of 2121086 is 6801212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

2^2121086 is an apocalyptic number.

2121086 is a deficient number, since it is larger than the sum of its proper divisors (1404034).

2121086 is a wasteful number, since it uses less digits than its factorization.

2121086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2121086 is about 1456.3948640393. The cubic root of 2121086 is about 128.4850977182.

Adding to 2121086 its reverse (6801212), we get a palindrome (8922298).

The spelling of 2121086 in words is "two million, one hundred twenty-one thousand, eighty-six".