221700068 has 24 divisors (see below), whose sum is σ = 393566040. Its totient is φ = 109260800.

The previous prime is 221700053. The next prime is 221700103. The reversal of 221700068 is 860007122.

It can be written as a sum of positive squares in 4 ways, for example, as 24522304 + 197177764 = 4952^2 + 14042^2 .

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, 141980 + ... + 143532.

It is an arithmetic number, because the mean of its divisors is an integer number (16398585).

Almost surely, 2^221700068 is an apocalyptic number.

It is an amenable number.

221700068 is a deficient number, since it is larger than the sum of its proper divisors (171865972).

221700068 is a wasteful number, since it uses less digits than its factorization.

221700068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 221700068 is about 14889.5959649683. The cubic root of 221700068 is about 605.2320836250.

The spelling of 221700068 in words is "two hundred twenty-one million, seven hundred thousand, sixty-eight".