20332221212123 has 4 divisors (see below), whose sum is σ = 20332260838560. Its totient is φ = 20332181585688.

The previous prime is 20332221212117. The next prime is 20332221212167. The reversal of 20332221212123 is 32121212223302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20332221212123 - 2⁸ = 20332221211867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20332221212092 and 20332221212101.

It is not an unprimeable number, because it can be changed into a prime (20332221215123) 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, 19033340 + ... + 20073177.

It is an arithmetic number, because the mean of its divisors is an integer number (5083065209640).

Almost surely, 2^{20332221212123} is an apocalyptic number.

20332221212123 is a deficient number, since it is larger than the sum of its proper divisors (39626437).

20332221212123 is an equidigital number, since it uses as much as digits as its factorization.

20332221212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39626436.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20332221212123 its reverse (32121212223302), we get a palindrome (52453433435425).

The spelling of 20332221212123 in words is "twenty trillion, three hundred thirty-two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twenty-three".