221440033355 has 8 divisors (see below), whose sum is σ = 281359101312. Its totient is φ = 166731319168.

The previous prime is 221440033313. The next prime is 221440033357. The reversal of 221440033355 is 553330044122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221440033355 - 2⁶ = 221440033291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221440033357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302588347 + ... + 1302588516.

It is an arithmetic number, because the mean of its divisors is an integer number (35169887664).

Almost surely, 2^221440033355 is an apocalyptic number.

221440033355 is a deficient number, since it is larger than the sum of its proper divisors (59919067957).

221440033355 is a wasteful number, since it uses less digits than its factorization.

221440033355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605176885.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 221440033355 its reverse (553330044122), we get a palindrome (774770077477).

The spelling of 221440033355 in words is "two hundred twenty-one billion, four hundred forty million, thirty-three thousand, three hundred fifty-five".