12222102220 has 24 divisors (see below), whose sum is σ = 25779492144. Its totient is φ = 4867302336.

The previous prime is 12222102163. The next prime is 12222102239. The reversal of 12222102220 is 2220122221.

It is a super-2 number, since 2×12222102220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12222102194 and 12222102203.

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, 1341507 + ... + 1350586.

It is an arithmetic number, because the mean of its divisors is an integer number (1074145506).

Almost surely, 2^12222102220 is an apocalyptic number.

12222102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222102220 is an abundant number, since it is smaller than the sum of its proper divisors (13557389924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222102220 is a wasteful number, since it uses less digits than its factorization.

12222102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692329 (or 2692327 counting only the distinct ones).

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

Adding to 12222102220 its reverse (2220122221), we get a palindrome (14442224441).

The spelling of 12222102220 in words is "twelve billion, two hundred twenty-two million, one hundred two thousand, two hundred twenty".