221340211140 has 96 divisors (see below), whose sum is σ = 659319260544. Its totient is φ = 55288719360.

The previous prime is 221340211133. The next prime is 221340211171. The reversal of 221340211140 is 41112043122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298999 + ... + 729438.

It is an arithmetic number, because the mean of its divisors is an integer number (6867908964).

Almost surely, 2^221340211140 is an apocalyptic number.

221340211140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221340211140 is an abundant number, since it is smaller than the sum of its proper divisors (437979049404).

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

221340211140 is a wasteful number, since it uses less digits than its factorization.

221340211140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028677 (or 1028675 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221340211140 its reverse (41112043122), we get a palindrome (262452254262).

The spelling of 221340211140 in words is "two hundred twenty-one billion, three hundred forty million, two hundred eleven thousand, one hundred forty".