6621402122 has 8 divisors (see below), whose sum is σ = 9958310400. Its totient is φ = 3301965324.

The previous prime is 6621402043. The next prime is 6621402163. The reversal of 6621402122 is 2212041266.

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

It is a super-2 number, since 2×6621402122² = 87685932122452205768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6621402091 and 6621402100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4366922 + ... + 4368437.

It is an arithmetic number, because the mean of its divisors is an integer number (1244788800).

Almost surely, 2^6621402122 is an apocalyptic number.

6621402122 is a deficient number, since it is larger than the sum of its proper divisors (3336908278).

6621402122 is a wasteful number, since it uses less digits than its factorization.

6621402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8735740.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6621402122 is about 81371.9983901096. The cubic root of 6621402122 is about 1877.8028241518.

Adding to 6621402122 its reverse (2212041266), we get a palindrome (8833443388).

The spelling of 6621402122 in words is "six billion, six hundred twenty-one million, four hundred two thousand, one hundred twenty-two".