2206121652 has 36 divisors (see below), whose sum is σ = 6373241056. Its totient is φ = 630320400.

The previous prime is 2206121647. The next prime is 2206121653. The reversal of 2206121652 is 2561216022.

2206121652 is a `hidden beast` number, since 2 + 2 + 0 + 6 + 1 + 2 + 1 + 652 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206121653) 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 11 ways as a sum of consecutive naturals, for example, 4376974 + ... + 4377477.

Almost surely, 2^2206121652 is an apocalyptic number.

It is an amenable number.

2206121652 is an abundant number, since it is smaller than the sum of its proper divisors (4167119404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2206121652 is a wasteful number, since it uses less digits than its factorization.

2206121652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8754468 (or 8754463 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2206121652 is about 46969.3692953184. The cubic root of 2206121652 is about 1301.7966582003.

Adding to 2206121652 its reverse (2561216022), we get a palindrome (4767337674).

The spelling of 2206121652 in words is "two billion, two hundred six million, one hundred twenty-one thousand, six hundred fifty-two".