12212222310 has 128 divisors (see below), whose sum is σ = 33399336960. Its totient is φ = 3173603328.

The previous prime is 12212222293. The next prime is 12212222311. The reversal of 12212222310 is 1322221221.

12212222310 is a `hidden beast` number, since 122 + 12 + 222 + 310 = 666.

It is a super-2 number, since 2×12212222310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212222311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6698059 + ... + 6699881.

It is an arithmetic number, because the mean of its divisors is an integer number (260932320).

Almost surely, 2^12212222310 is an apocalyptic number.

12212222310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212222310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16699668480).

12212222310 is an abundant number, since it is smaller than the sum of its proper divisors (21187114650).

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

12212222310 is a wasteful number, since it uses less digits than its factorization.

12212222310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12212222310 its reverse (1322221221), we get a palindrome (13534443531).

The spelling of 12212222310 in words is "twelve billion, two hundred twelve million, two hundred twenty-two thousand, three hundred ten".