12210121101023 has 2 divisors, whose sum is σ = 12210121101024. Its totient is φ = 12210121101022.

The previous prime is 12210121101007. The next prime is 12210121101041. The reversal of 12210121101023 is 32010112101221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12210121101023 - 2⁴ = 12210121101007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210121100992 and 12210121101010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210121181023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105060550511 + 6105060550512.

It is an arithmetic number, because the mean of its divisors is an integer number (6105060550512).

Almost surely, 2^{12210121101023} is an apocalyptic number.

12210121101023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210121101023 is an equidigital number, since it uses as much as digits as its factorization.

12210121101023 is an evil number, because the sum of its binary digits is even.

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

Adding to 12210121101023 its reverse (32010112101221), we get a palindrome (44220233202244).

The spelling of 12210121101023 in words is "twelve trillion, two hundred ten billion, one hundred twenty-one million, one hundred one thousand, twenty-three".