221394846248 has 32 divisors (see below), whose sum is σ = 416045185920. Its totient is φ = 110449680000.

The previous prime is 221394846191. The next prime is 221394846269. The reversal of 221394846248 is 842648493122.

It is a self number, because there is not a number n which added to its sum of digits gives 221394846248.

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, 8983463 + ... + 9008073.

It is an arithmetic number, because the mean of its divisors is an integer number (13001412060).

Almost surely, 2^221394846248 is an apocalyptic number.

It is an amenable number.

221394846248 is a deficient number, since it is larger than the sum of its proper divisors (194650339672).

221394846248 is a wasteful number, since it uses less digits than its factorization.

221394846248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27089 (or 27085 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 53.

The spelling of 221394846248 in words is "two hundred twenty-one billion, three hundred ninety-four million, eight hundred forty-six thousand, two hundred forty-eight".