221140510535 has 16 divisors (see below), whose sum is σ = 311475130176. Its totient is φ = 147540849408.

The previous prime is 221140510519. The next prime is 221140510543. The reversal of 221140510535 is 535015041122.

221140510535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221140510535 - 2⁴ = 221140510519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221140510498 and 221140510507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85381142 + ... + 85383731.

It is an arithmetic number, because the mean of its divisors is an integer number (19467195636).

Almost surely, 2^221140510535 is an apocalyptic number.

221140510535 is a deficient number, since it is larger than the sum of its proper divisors (90334619641).

221140510535 is a wasteful number, since it uses less digits than its factorization.

221140510535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170764922.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 221140510535 its reverse (535015041122), we get a palindrome (756155551657).

The spelling of 221140510535 in words is "two hundred twenty-one billion, one hundred forty million, five hundred ten thousand, five hundred thirty-five".