221620050600 has 96 divisors (see below), whose sum is σ = 739870041120. Its totient is φ = 54552625920.

The previous prime is 221620050529. The next prime is 221620050607. The reversal of 221620050600 is 6050026122.

221620050600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (221620050607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14198614 + ... + 14214213.

It is an arithmetic number, because the mean of its divisors is an integer number (7706979595).

Almost surely, 2^221620050600 is an apocalyptic number.

221620050600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221620050600 is an abundant number, since it is smaller than the sum of its proper divisors (518249990520).

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

221620050600 is a wasteful number, since it uses less digits than its factorization.

221620050600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412859 (or 28412850 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 221620050600 its reverse (6050026122), we get a palindrome (227670076722).

The spelling of 221620050600 in words is "two hundred twenty-one billion, six hundred twenty million, fifty thousand, six hundred".