221423143331 has 8 divisors (see below), whose sum is σ = 251005992720. Its totient is φ = 193633193952.

The previous prime is 221423143327. The next prime is 221423143363. The reversal of 221423143331 is 133341324122.

221423143331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 221423143331 - 2² = 221423143327 is a prime.

It is a super-2 number, since 2×221423143331² (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 = 221423143294 and 221423143303.

It is not an unprimeable number, because it can be changed into a prime (221423143631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448224740 + ... + 448225233.

It is an arithmetic number, because the mean of its divisors is an integer number (31375749090).

Almost surely, 2^221423143331 is an apocalyptic number.

221423143331 is a deficient number, since it is larger than the sum of its proper divisors (29582849389).

221423143331 is a wasteful number, since it uses less digits than its factorization.

221423143331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896450005.

The product of its digits is 10368, while the sum is 29.

Adding to 221423143331 its reverse (133341324122), we get a palindrome (354764467453).

The spelling of 221423143331 in words is "two hundred twenty-one billion, four hundred twenty-three million, one hundred forty-three thousand, three hundred thirty-one".