12212000123 has 4 divisors (see below), whose sum is σ = 12292874448. Its totient is φ = 12131125800.

The previous prime is 12212000107. The next prime is 12212000149. The reversal of 12212000123 is 32100021221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32100021221 = 5009 ⋅6408469.

It is a cyclic number.

It is not a de Polignac number, because 12212000123 - 2⁴ = 12212000107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212000098 and 12212000107.

It is not an unprimeable number, because it can be changed into a prime (12212000023) 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, 40436936 + ... + 40437237.

It is an arithmetic number, because the mean of its divisors is an integer number (3073218612).

Almost surely, 2^12212000123 is an apocalyptic number.

12212000123 is a deficient number, since it is larger than the sum of its proper divisors (80874325).

12212000123 is an equidigital number, since it uses as much as digits as its factorization.

12212000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80874324.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12212000123 its reverse (32100021221), we get a palindrome (44312021344).

The spelling of 12212000123 in words is "twelve billion, two hundred twelve million, one hundred twenty-three", and thus it is an aban number.