221404345130 has 32 divisors (see below), whose sum is σ = 420021806400. Its totient is φ = 83796826752.

The previous prime is 221404345117. The next prime is 221404345159. The reversal of 221404345130 is 31543404122.

221404345130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221404345093 and 221404345102.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 566492 + ... + 873911.

It is an arithmetic number, because the mean of its divisors is an integer number (13125681450).

Almost surely, 2^221404345130 is an apocalyptic number.

221404345130 is a deficient number, since it is larger than the sum of its proper divisors (198617461270).

221404345130 is a wasteful number, since it uses less digits than its factorization.

221404345130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441238.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 221404345130 its reverse (31543404122), we get a palindrome (252947749252).

The spelling of 221404345130 in words is "two hundred twenty-one billion, four hundred four million, three hundred forty-five thousand, one hundred thirty".