12211212310 has 24 divisors (see below), whose sum is σ = 24160037328. Its totient is φ = 4440440400.

The previous prime is 12211212287. The next prime is 12211212311. The reversal of 12211212310 is 1321211221.

It is a super-2 number, since 2×12211212310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211212311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5044746 + ... + 5047165.

It is an arithmetic number, because the mean of its divisors is an integer number (1006668222).

Almost surely, 2^12211212310 is an apocalyptic number.

12211212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211212310 is a deficient number, since it is larger than the sum of its proper divisors (11948825018).

12211212310 is a wasteful number, since it uses less digits than its factorization.

12211212310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091940 (or 10091929 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12211212310 its reverse (1321211221), we get a palindrome (13532423531).

The spelling of 12211212310 in words is "twelve billion, two hundred eleven million, two hundred twelve thousand, three hundred ten".