221800202552 has 16 divisors (see below), whose sum is σ = 416050816200. Its totient is φ = 110853318240.

The previous prime is 221800202539. The next prime is 221800202593. The reversal of 221800202552 is 255202008122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5827727 + ... + 5865662.

Almost surely, 2^221800202552 is an apocalyptic number.

It is an amenable number.

221800202552 is a deficient number, since it is larger than the sum of its proper divisors (194250613648).

221800202552 is a wasteful number, since it uses less digits than its factorization.

221800202552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11695766 (or 11695762 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The spelling of 221800202552 in words is "two hundred twenty-one billion, eight hundred million, two hundred two thousand, five hundred fifty-two".