21223043234024 has 32 divisors (see below), whose sum is σ = 39845949818400. Its totient is φ = 10597459602240.

The previous prime is 21223043234017. The next prime is 21223043234027. The reversal of 21223043234024 is 42043234032212.

It is a super-2 number, since 2×21223043234024² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21223043234027) 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, 58177907 + ... + 58541565.

It is an arithmetic number, because the mean of its divisors is an integer number (1245185931825).

Almost surely, 2^{21223043234024} is an apocalyptic number.

It is an amenable number.

21223043234024 is a deficient number, since it is larger than the sum of its proper divisors (18622906584376).

21223043234024 is a wasteful number, since it uses less digits than its factorization.

21223043234024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373313 (or 373309 counting only the distinct ones).

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

Adding to 21223043234024 its reverse (42043234032212), we get a palindrome (63266277266236).

The spelling of 21223043234024 in words is "twenty-one trillion, two hundred twenty-three billion, forty-three million, two hundred thirty-four thousand, twenty-four".