6621100202 has 8 divisors (see below), whose sum is σ = 10454368800. Its totient is φ = 3136310604.

The previous prime is 6621100201. The next prime is 6621100237. The reversal of 6621100202 is 2020011266.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (6621100201) 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 3 ways as a sum of consecutive naturals, for example, 87119702 + ... + 87119777.

It is an arithmetic number, because the mean of its divisors is an integer number (1306796100).

Almost surely, 2^6621100202 is an apocalyptic number.

6621100202 is a deficient number, since it is larger than the sum of its proper divisors (3833268598).

6621100202 is a wasteful number, since it uses less digits than its factorization.

6621100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174239500.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 6621100202 is about 81370.1431853232. The cubic root of 6621100202 is about 1877.7742826216.

Adding to 6621100202 its reverse (2020011266), we get a palindrome (8641111468).

The spelling of 6621100202 in words is "six billion, six hundred twenty-one million, one hundred thousand, two hundred two".