221601003354 has 96 divisors (see below), whose sum is σ = 491376435264. Its totient is φ = 72158169600.

The previous prime is 221601003343. The next prime is 221601003373. The reversal of 221601003354 is 453300106122.

221601003354 is a `hidden beast` number, since 2 + 2 + 1 + 601 + 0 + 0 + 3 + 3 + 54 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116569804 + ... + 116571704.

It is an arithmetic number, because the mean of its divisors is an integer number (5118504534).

Almost surely, 2^221601003354 is an apocalyptic number.

221601003354 is an abundant number, since it is smaller than the sum of its proper divisors (269775431910).

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

221601003354 is a wasteful number, since it uses less digits than its factorization.

221601003354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 221601003354 its reverse (453300106122), we get a palindrome (674901109476).

The spelling of 221601003354 in words is "two hundred twenty-one billion, six hundred one million, three thousand, three hundred fifty-four".