12102210122 has 16 divisors (see below), whose sum is σ = 18203005032. Its totient is φ = 6034564800.

The previous prime is 12102210119. The next prime is 12102210143. The reversal of 12102210122 is 22101220121.

It can be written as a sum of positive squares in 4 ways, for example, as 11282475961 + 819734161 = 106219^2 + 28631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12102210097 and 12102210106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217372 + ... + 1227272.

Almost surely, 2^12102210122 is an apocalyptic number.

12102210122 is a deficient number, since it is larger than the sum of its proper divisors (6100794910).

12102210122 is an equidigital number, since it uses as much as digits as its factorization.

12102210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513.

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

Adding to 12102210122 its reverse (22101220121), we get a palindrome (34203430243).

Subtracting 12102210122 from its reverse (22101220121), we obtain a palindrome (9999009999).

The spelling of 12102210122 in words is "twelve billion, one hundred two million, two hundred ten thousand, one hundred twenty-two".