6561207000222 has 24 divisors (see below), whose sum is σ = 15264848939976. Its totient is φ = 1874630571408.

The previous prime is 6561207000209. The next prime is 6561207000263. The reversal of 6561207000222 is 2220007021656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11158515013 + ... + 11158515600.

It is an arithmetic number, because the mean of its divisors is an integer number (636035372499).

Almost surely, 2^{6561207000222} is an apocalyptic number.

6561207000222 is an abundant number, since it is smaller than the sum of its proper divisors (8703641939754).

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

6561207000222 is a wasteful number, since it uses less digits than its factorization.

6561207000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22317030632 (or 22317030625 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 6561207000222 in words is "six trillion, five hundred sixty-one billion, two hundred seven million, two hundred twenty-two", and thus it is an aban number.