221121032323200 has 96 divisors (see below), whose sum is σ = 728317400246160. Its totient is φ = 58965608616960.

The previous prime is 221121032323199. The next prime is 221121032323229. The reversal of 221121032323200 is 2323230121122.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 11516710834 + ... + 11516730033.

Almost surely, 2^{221121032323200} is an apocalyptic number.

221121032323200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221121032323200 is an abundant number, since it is smaller than the sum of its proper divisors (507196367922960).

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

221121032323200 is a wasteful number, since it uses less digits than its factorization.

221121032323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033440894 (or 23033440877 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 221121032323200 its reverse (2323230121122), we get a palindrome (223444262444322).

The spelling of 221121032323200 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, thirty-two million, three hundred twenty-three thousand, two hundred".