20223221132121 has 16 divisors (see below), whose sum is σ = 30816675913728. Its totient is φ = 11555999254800.

The previous prime is 20223221132089. The next prime is 20223221132129. The reversal of 20223221132121 is 12123112232202.

It is not a de Polignac number, because 20223221132121 - 2⁵ = 20223221132089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20223221132091 and 20223221132100.

It is not an unprimeable number, because it can be changed into a prime (20223221132129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3324315 + ... + 7176176.

It is an arithmetic number, because the mean of its divisors is an integer number (1926042244608).

Almost surely, 2^{20223221132121} is an apocalyptic number.

20223221132121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20223221132121 is a deficient number, since it is larger than the sum of its proper divisors (10593454781607).

20223221132121 is a wasteful number, since it uses less digits than its factorization.

20223221132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10592212.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20223221132121 its reverse (12123112232202), we get a palindrome (32346333364323).

The spelling of 20223221132121 in words is "twenty trillion, two hundred twenty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty-one".