221534404160230 has 32 divisors (see below), whose sum is σ = 455733591833664. Its totient is φ = 75953707070976.

The previous prime is 221534404160227. The next prime is 221534404160347. The reversal of 221534404160230 is 32061404435122.

It is a super-2 number, since 2×221534404160230² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221534404160230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14030487 + ... + 25296706.

It is an arithmetic number, because the mean of its divisors is an integer number (14241674744802).

Almost surely, 2^{221534404160230} is an apocalyptic number.

221534404160230 is an abundant number, since it is smaller than the sum of its proper divisors (234199187673434).

221534404160230 is a wasteful number, since it uses less digits than its factorization.

221534404160230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39407680.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 221534404160230 its reverse (32061404435122), we get a palindrome (253595808595352).

The spelling of 221534404160230 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred four million, one hundred sixty thousand, two hundred thirty".