221230423423004 has 24 divisors (see below), whose sum is σ = 388324989537408. Its totient is φ = 110280430030320.

The previous prime is 221230423423003. The next prime is 221230423423043. The reversal of 221230423423004 is 400324324032122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221230423423003) 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, 342570899 + ... + 343216085.

It is an arithmetic number, because the mean of its divisors is an integer number (16180207897392).

Almost surely, 2^{221230423423004} is an apocalyptic number.

It is an amenable number.

221230423423004 is a deficient number, since it is larger than the sum of its proper divisors (167094566114404).

221230423423004 is a wasteful number, since it uses less digits than its factorization.

221230423423004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904505 (or 904503 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 221230423423004 its reverse (400324324032122), we get a palindrome (621554747455126).

The spelling of 221230423423004 in words is "two hundred twenty-one trillion, two hundred thirty billion, four hundred twenty-three million, four hundred twenty-three thousand, four".