2006211261 has 8 divisors (see below), whose sum is σ = 2688808960. Its totient is φ = 1330543872.

The previous prime is 2006211203. The next prime is 2006211301. The reversal of 2006211261 is 1621126002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2006211261 - 2²² = 2002016957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006261261) 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 in 7 ways as a sum of consecutive naturals, for example, 1731901 + ... + 1733058.

It is an arithmetic number, because the mean of its divisors is an integer number (336101120).

Almost surely, 2^2006211261 is an apocalyptic number.

It is an amenable number.

2006211261 is a deficient number, since it is larger than the sum of its proper divisors (682597699).

2006211261 is a wasteful number, since it uses less digits than its factorization.

2006211261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465155.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2006211261 is about 44790.7497258083. The cubic root of 2006211261 is about 1261.2239850926.

Adding to 2006211261 its reverse (1621126002), we get a palindrome (3627337263).

The spelling of 2006211261 in words is "two billion, six million, two hundred eleven thousand, two hundred sixty-one".