20211223324 has 12 divisors (see below), whose sum is σ = 37231201000. Its totient is φ = 9573737328.

The previous prime is 20211223321. The next prime is 20211223337. The reversal of 20211223324 is 42332211202.

It is a junction number, because it is equal to n+sod(n) for n = 20211223295 and 20211223304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211223321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132968499 + ... + 132968650.

Almost surely, 2^20211223324 is an apocalyptic number.

It is an amenable number.

20211223324 is a deficient number, since it is larger than the sum of its proper divisors (17019977676).

20211223324 is a wasteful number, since it uses less digits than its factorization.

20211223324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265937172 (or 265937170 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20211223324 its reverse (42332211202), we get a palindrome (62543434526).

The spelling of 20211223324 in words is "twenty billion, two hundred eleven million, two hundred twenty-three thousand, three hundred twenty-four".