221023322331 has 8 divisors (see below), whose sum is σ = 336797443584. Its totient is φ = 126299041320.

The previous prime is 221023322329. The next prime is 221023322339. The reversal of 221023322331 is 133223320122.

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

It is not a de Polignac number, because 221023322331 - 2¹ = 221023322329 is a prime.

It is a super-2 number, since 2×221023322331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221023322339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5262460035 + ... + 5262460076.

It is an arithmetic number, because the mean of its divisors is an integer number (42099680448).

Almost surely, 2^221023322331 is an apocalyptic number.

221023322331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

221023322331 is a deficient number, since it is larger than the sum of its proper divisors (115774121253).

221023322331 is a wasteful number, since it uses less digits than its factorization.

221023322331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524920121.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221023322331 its reverse (133223320122), we get a palindrome (354246642453).

It can be divided in two parts, 22102 and 3322331, that added together give a palindrome (3344433).

The spelling of 221023322331 in words is "two hundred twenty-one billion, twenty-three million, three hundred twenty-two thousand, three hundred thirty-one".