221240221130 has 32 divisors (see below), whose sum is σ = 399530693376. Its totient is φ = 88207838784.

The previous prime is 221240221123. The next prime is 221240221159. The reversal of 221240221130 is 31122042122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7313897 + ... + 7344083.

It is an arithmetic number, because the mean of its divisors is an integer number (12485334168).

Almost surely, 2^221240221130 is an apocalyptic number.

221240221130 is a deficient number, since it is larger than the sum of its proper divisors (178290472246).

221240221130 is a wasteful number, since it uses less digits than its factorization.

221240221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32558.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221240221130 its reverse (31122042122), we get a palindrome (252362263252).

The spelling of 221240221130 in words is "two hundred twenty-one billion, two hundred forty million, two hundred twenty-one thousand, one hundred thirty".