2120013206 has 4 divisors (see below), whose sum is σ = 3180019812. Its totient is φ = 1060006602.

The previous prime is 2120013173. The next prime is 2120013209. The reversal of 2120013206 is 6023100212.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2120013206² = 8988911987228796872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120013209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530003300 + ... + 530003303.

It is an arithmetic number, because the mean of its divisors is an integer number (795004953).

Almost surely, 2^2120013206 is an apocalyptic number.

2120013206 is a deficient number, since it is larger than the sum of its proper divisors (1060006606).

2120013206 is a wasteful number, since it uses less digits than its factorization.

2120013206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060006605.

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

The square root of 2120013206 is about 46043.6011406580. The cubic root of 2120013206 is about 1284.6343251355.

Adding to 2120013206 its reverse (6023100212), we get a palindrome (8143113418).

The spelling of 2120013206 in words is "two billion, one hundred twenty million, thirteen thousand, two hundred six".