221054344200 has 144 divisors (see below), whose sum is σ = 754957148400. Its totient is φ = 57948681600.

The previous prime is 221054344171. The next prime is 221054344213. The reversal of 221054344200 is 2443450122.

221054344200 is a `hidden beast` number, since 2 + 21 + 0 + 5 + 434 + 4 + 200 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 934546 + ... + 1146945.

It is an arithmetic number, because the mean of its divisors is an integer number (5242757975).

Almost surely, 2^221054344200 is an apocalyptic number.

221054344200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221054344200 is an abundant number, since it is smaller than the sum of its proper divisors (533902804200).

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

221054344200 is a wasteful number, since it uses less digits than its factorization.

221054344200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081572 (or 2081560 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 221054344200 its reverse (2443450122), we get a palindrome (223497794322).

The spelling of 221054344200 in words is "two hundred twenty-one billion, fifty-four million, three hundred forty-four thousand, two hundred".