221232201140 has 24 divisors (see below), whose sum is σ = 489039603360. Its totient is φ = 83835360288.

The previous prime is 221232201137. The next prime is 221232201163. The reversal of 221232201140 is 41102232122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 291094622 + ... + 291095381.

It is an arithmetic number, because the mean of its divisors is an integer number (20376650140).

Almost surely, 2^221232201140 is an apocalyptic number.

221232201140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221232201140 is an abundant number, since it is smaller than the sum of its proper divisors (267807402220).

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

221232201140 is a wasteful number, since it uses less digits than its factorization.

221232201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582190031 (or 582190029 counting only the distinct ones).

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

Adding to 221232201140 its reverse (41102232122), we get a palindrome (262334433262).

The spelling of 221232201140 in words is "two hundred twenty-one billion, two hundred thirty-two million, two hundred one thousand, one hundred forty".