6621822056111 has 8 divisors (see below), whose sum is σ = 6628352347344. Its totient is φ = 6615292844160.

The previous prime is 6621822056089. The next prime is 6621822056159. The reversal of 6621822056111 is 1116502281266.

6621822056111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6621822056111 - 2¹⁸ = 6621821793967 is a prime.

It is a super-2 number, since 2×6621822056111² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6621822056611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12294791 + ... + 12822071.

It is an arithmetic number, because the mean of its divisors is an integer number (828544043418).

Almost surely, 2^{6621822056111} is an apocalyptic number.

6621822056111 is a deficient number, since it is larger than the sum of its proper divisors (6530291233).

6621822056111 is a wasteful number, since it uses less digits than its factorization.

6621822056111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539641.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 6621822056111 in words is "six trillion, six hundred twenty-one billion, eight hundred twenty-two million, fifty-six thousand, one hundred eleven".