221010230333221 has 32 divisors (see below), whose sum is σ = 273441171548160. Its totient is φ = 174403489248576.

The previous prime is 221010230333197. The next prime is 221010230333251. The reversal of 221010230333221 is 122333032010122.

It is not a de Polignac number, because 221010230333221 - 2³⁹ = 220460474519333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010230333251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96956881 + ... + 99210166.

It is an arithmetic number, because the mean of its divisors is an integer number (8545036610880).

Almost surely, 2^{221010230333221} is an apocalyptic number.

It is an amenable number.

221010230333221 is a deficient number, since it is larger than the sum of its proper divisors (52430941214939).

221010230333221 is a wasteful number, since it uses less digits than its factorization.

221010230333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196167313.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 221010230333221 its reverse (122333032010122), we get a palindrome (343343262343343).

The spelling of 221010230333221 in words is "two hundred twenty-one trillion, ten billion, two hundred thirty million, three hundred thirty-three thousand, two hundred twenty-one".