2206116621 has 16 divisors (see below), whose sum is σ = 3269685120. Its totient is φ = 1470130560.

The previous prime is 2206116611. The next prime is 2206116629. The reversal of 2206116621 is 1266116022.

2206116621 is a `hidden beast` number, since 2 + 20 + 6 + 1 + 16 + 621 = 666.

It is not a de Polignac number, because 2206116621 - 2⁵ = 2206116589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206116629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54256 + ... + 85766.

It is an arithmetic number, because the mean of its divisors is an integer number (204355320).

Almost surely, 2^2206116621 is an apocalyptic number.

It is an amenable number.

2206116621 is a deficient number, since it is larger than the sum of its proper divisors (1063568499).

2206116621 is a wasteful number, since it uses less digits than its factorization.

2206116621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34113 (or 34107 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2206116621 is about 46969.3157391078. The cubic root of 2206116621 is about 1301.7956686290.

The spelling of 2206116621 in words is "two billion, two hundred six million, one hundred sixteen thousand, six hundred twenty-one".