20121022223023 has 8 divisors (see below), whose sum is σ = 20549982437568. Its totient is φ = 19692097565184.

The previous prime is 20121022223009. The next prime is 20121022223089. The reversal of 20121022223023 is 32032222012102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121022223023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20121022222985 and 20121022223003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121022323023) 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, 7743786 + ... + 10010407.

It is an arithmetic number, because the mean of its divisors is an integer number (2568747804696).

Almost surely, 2^{20121022223023} is an apocalyptic number.

20121022223023 is a deficient number, since it is larger than the sum of its proper divisors (428960214545).

20121022223023 is a wasteful number, since it uses less digits than its factorization.

20121022223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778353.

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

Adding to 20121022223023 its reverse (32032222012102), we get a palindrome (52153244235125).

The spelling of 20121022223023 in words is "twenty trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty-three thousand, twenty-three".