12210120111023 has 4 divisors (see below), whose sum is σ = 12239261209560. Its totient is φ = 12180979012488.

The previous prime is 12210120110971. The next prime is 12210120111029. The reversal of 12210120111023 is 32011102101221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210120111023 is a prime.

It is a super-2 number, since 2×12210120111023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210120110992 and 12210120111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210120111029) 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, 14570548640 + ... + 14570549477.

It is an arithmetic number, because the mean of its divisors is an integer number (3059815302390).

Almost surely, 2^{12210120111023} is an apocalyptic number.

12210120111023 is a deficient number, since it is larger than the sum of its proper divisors (29141098537).

12210120111023 is an equidigital number, since it uses as much as digits as its factorization.

12210120111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29141098536.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12210120111023 its reverse (32011102101221), we get a palindrome (44221222212244).

The spelling of 12210120111023 in words is "twelve trillion, two hundred ten billion, one hundred twenty million, one hundred eleven thousand, twenty-three".