221401130 has 8 divisors (see below), whose sum is σ = 398522052. Its totient is φ = 88560448.

The previous prime is 221401121. The next prime is 221401133. The reversal of 221401130 is 31104122.

221401130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203262049 + 18139081 = 14257^2 + 4259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221401133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11070047 + ... + 11070066.

Almost surely, 2^221401130 is an apocalyptic number.

221401130 is a deficient number, since it is larger than the sum of its proper divisors (177120922).

221401130 is a wasteful number, since it uses less digits than its factorization.

221401130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140120.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 221401130 is about 14879.5540927811. The cubic root of 221401130 is about 604.9599317771.

Adding to 221401130 its reverse (31104122), we get a palindrome (252505252).

The spelling of 221401130 in words is "two hundred twenty-one million, four hundred one thousand, one hundred thirty".