20223232320021 has 16 divisors (see below), whose sum is σ = 27622791067200. Its totient is φ = 13152933636480.

The previous prime is 20223232319963. The next prime is 20223232320131. The reversal of 20223232320021 is 12002323232202.

It is not a de Polignac number, because 20223232320021 - 2¹⁰ = 20223232318997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20223232319973 and 20223232320000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223232321021) 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 15 ways as a sum of consecutive naturals, for example, 1787955 + ... + 6606303.

It is an arithmetic number, because the mean of its divisors is an integer number (1726424441700).

Almost surely, 2^{20223232320021} is an apocalyptic number.

It is an amenable number.

20223232320021 is a deficient number, since it is larger than the sum of its proper divisors (7399558747179).

20223232320021 is a wasteful number, since it uses less digits than its factorization.

20223232320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852516.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20223232320021 its reverse (12002323232202), we get a palindrome (32225555552223).

The spelling of 20223232320021 in words is "twenty trillion, two hundred twenty-three billion, two hundred thirty-two million, three hundred twenty thousand, twenty-one".