12200122222 has 4 divisors (see below), whose sum is σ = 18300183336. Its totient is φ = 6100061110.

The previous prime is 12200122213. The next prime is 12200122223. The reversal of 12200122222 is 22222100221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22222100221 = 47 ⋅472810643.

It is a junction number, because it is equal to n+sod(n) for n = 12200122196 and 12200122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200122223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050030554 + ... + 3050030557.

It is an arithmetic number, because the mean of its divisors is an integer number (4575045834).

Almost surely, 2^12200122222 is an apocalyptic number.

12200122222 is a deficient number, since it is larger than the sum of its proper divisors (6100061114).

12200122222 is an equidigital number, since it uses as much as digits as its factorization.

12200122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100061113.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12200122222 its reverse (22222100221), we get a palindrome (34422222443).

The spelling of 12200122222 in words is "twelve billion, two hundred million, one hundred twenty-two thousand, two hundred twenty-two".