12210001021123 has 2 divisors, whose sum is σ = 12210001021124. Its totient is φ = 12210001021122.

The previous prime is 12210001021103. The next prime is 12210001021189. The reversal of 12210001021123 is 32112010001221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12210001021123 - 2¹³ = 12210001012931 is a prime.

It is a super-2 number, since 2×12210001021123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12210001021097 and 12210001021106.

It is not a weakly prime, because it can be changed into another prime (12210001021103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105000510561 + 6105000510562.

It is an arithmetic number, because the mean of its divisors is an integer number (6105000510562).

Almost surely, 2^{12210001021123} is an apocalyptic number.

12210001021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210001021123 is an equidigital number, since it uses as much as digits as its factorization.

12210001021123 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 16.

Adding to 12210001021123 its reverse (32112010001221), we get a palindrome (44322011022344).

The spelling of 12210001021123 in words is "twelve trillion, two hundred ten billion, one million, twenty-one thousand, one hundred twenty-three".