2120066 has 16 divisors (see below), whose sum is σ = 3474744. Its totient is φ = 964224.

The previous prime is 2120057. The next prime is 2120093. The reversal of 2120066 is 6600212.

It can be written as a sum of positive squares in 4 ways, for example, as 942841 + 1177225 = 971^2 + 1085^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340 + ... + 2456.

2^2120066 is an apocalyptic number.

2120066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2120066 is a deficient number, since it is larger than the sum of its proper divisors (1354678).

2120066 is a wasteful number, since it uses less digits than its factorization.

2120066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2120066 is about 1456.0446421728. The cubic root of 2120066 is about 128.4644988657.

Adding to 2120066 its reverse (6600212), we get a palindrome (8720278).

The spelling of 2120066 in words is "two million, one hundred twenty thousand, sixty-six".