221130344140 has 24 divisors (see below), whose sum is σ = 464663842272. Its totient is φ = 88396876800.

The previous prime is 221130344089. The next prime is 221130344153. The reversal of 221130344140 is 41443031122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3420984 + ... + 3485023.

It is an arithmetic number, because the mean of its divisors is an integer number (19360993428).

Almost surely, 2^221130344140 is an apocalyptic number.

221130344140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221130344140 is an abundant number, since it is smaller than the sum of its proper divisors (243533498132).

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

221130344140 is a wasteful number, since it uses less digits than its factorization.

221130344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907617 (or 6907615 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221130344140 its reverse (41443031122), we get a palindrome (262573375262).

The spelling of 221130344140 in words is "two hundred twenty-one billion, one hundred thirty million, three hundred forty-four thousand, one hundred forty".