221088214940 has 24 divisors (see below), whose sum is σ = 464309102880. Its totient is φ = 88430742848.

The previous prime is 221088214937. The next prime is 221088215003. The reversal of 221088214940 is 49412880122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129806 + ... + 677514.

It is an arithmetic number, because the mean of its divisors is an integer number (19346212620).

Almost surely, 2^221088214940 is an apocalyptic number.

221088214940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221088214940 is an abundant number, since it is smaller than the sum of its proper divisors (243220887940).

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

221088214940 is a wasteful number, since it uses less digits than its factorization.

221088214940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567901 (or 567899 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 221088214940 in words is "two hundred twenty-one billion, eighty-eight million, two hundred fourteen thousand, nine hundred forty".