221032022321 has 8 divisors (see below), whose sum is σ = 251609575104. Its totient is φ = 192201758320.

The previous prime is 221032022287. The next prime is 221032022333. The reversal of 221032022321 is 123220230122.

It is a happy number.

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

It is not a de Polignac number, because 221032022321 - 2²⁶ = 220964913457 is a prime.

It is a super-2 number, since 2×221032022321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221032022293 and 221032022302.

It is not an unprimeable number, because it can be changed into a prime (221032022621) 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, 436821926 + ... + 436822431.

It is an arithmetic number, because the mean of its divisors is an integer number (31451196888).

Almost surely, 2^221032022321 is an apocalyptic number.

It is an amenable number.

221032022321 is a deficient number, since it is larger than the sum of its proper divisors (30577552783).

221032022321 is a wasteful number, since it uses less digits than its factorization.

221032022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873644391.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221032022321 its reverse (123220230122), we get a palindrome (344252252443).

The spelling of 221032022321 in words is "two hundred twenty-one billion, thirty-two million, twenty-two thousand, three hundred twenty-one".