221282848 has 24 divisors (see below), whose sum is σ = 439728912. Its totient is φ = 109605696.

The previous prime is 221282827. The next prime is 221282851. The reversal of 221282848 is 848282122.

It is a super-2 number, since 2×221282848² = 97932197637982208, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28890 + ... + 35737.

It is an arithmetic number, because the mean of its divisors is an integer number (18322038).

Almost surely, 2^221282848 is an apocalyptic number.

It is an amenable number.

221282848 is a deficient number, since it is larger than the sum of its proper divisors (218446064).

221282848 is a wasteful number, since it uses less digits than its factorization.

221282848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64744 (or 64736 counting only the distinct ones).

The product of its digits is 32768, while the sum is 37.

The square root of 221282848 is about 14875.5789131045. The cubic root of 221282848 is about 604.8521807204.

It can be divided in two parts, 22128 and 2848, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 221282848 in words is "two hundred twenty-one million, two hundred eighty-two thousand, eight hundred forty-eight".