221534041053 has 16 divisors (see below), whose sum is σ = 318134753216. Its totient is φ = 136313815680.

The previous prime is 221534041033. The next prime is 221534041193. The reversal of 221534041053 is 350140435122.

It is not a de Polignac number, because 221534041053 - 2⁶ = 221534040989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221534041053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221534041033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59958 + ... + 668328.

It is an arithmetic number, because the mean of its divisors is an integer number (19883422076).

Almost surely, 2^221534041053 is an apocalyptic number.

It is an amenable number.

221534041053 is a deficient number, since it is larger than the sum of its proper divisors (96600712163).

221534041053 is a wasteful number, since it uses less digits than its factorization.

221534041053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617724.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 221534041053 its reverse (350140435122), we get a palindrome (571674476175).

The spelling of 221534041053 in words is "two hundred twenty-one billion, five hundred thirty-four million, forty-one thousand, fifty-three".