7802200212221 has 16 divisors (see below), whose sum is σ = 7859909029440. Its totient is φ = 7744597436160.

The previous prime is 7802200212199. The next prime is 7802200212223. The reversal of 7802200212221 is 1222120022087.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7802200212221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7802200212223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755948741 + ... + 755959061.

It is an arithmetic number, because the mean of its divisors is an integer number (491244314340).

Almost surely, 2^{7802200212221} is an apocalyptic number.

It is an amenable number.

7802200212221 is a deficient number, since it is larger than the sum of its proper divisors (57708817219).

7802200212221 is a wasteful number, since it uses less digits than its factorization.

7802200212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14924.

The product of its (nonzero) digits is 3584, while the sum is 29.

The spelling of 7802200212221 in words is "seven trillion, eight hundred two billion, two hundred million, two hundred twelve thousand, two hundred twenty-one".