12210120122 has 4 divisors (see below), whose sum is σ = 18315180186. Its totient is φ = 6105060060.

The previous prime is 12210120113. The next prime is 12210120127. The reversal of 12210120122 is 22102101221.

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

It can be written as a sum of positive squares in only one way, i.e., 9718213561 + 2491906561 = 98581^2 + 49919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12210120097 and 12210120106.

It is not an unprimeable number, because it can be changed into a prime (12210120127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052530029 + ... + 3052530032.

Almost surely, 2^12210120122 is an apocalyptic number.

12210120122 is a deficient number, since it is larger than the sum of its proper divisors (6105060064).

12210120122 is an equidigital number, since it uses as much as digits as its factorization.

12210120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105060063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12210120122 its reverse (22102101221), we get a palindrome (34312221343).

The spelling of 12210120122 in words is "twelve billion, two hundred ten million, one hundred twenty thousand, one hundred twenty-two".