12211122112210 has 64 divisors (see below), whose sum is σ = 25940365737984. Its totient is φ = 4050050961600.

The previous prime is 12211122112181. The next prime is 12211122112213. The reversal of 12211122112210 is 1221122111221.

It is a happy number.

12211122112210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211122112210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211122112213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4536549 + ... + 6708391.

It is an arithmetic number, because the mean of its divisors is an integer number (405318214656).

Almost surely, 2^{12211122112210} is an apocalyptic number.

12211122112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211122112210 is an abundant number, since it is smaller than the sum of its proper divisors (13729243625774).

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

12211122112210 is a wasteful number, since it uses less digits than its factorization.

12211122112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174479.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12211122112210 its reverse (1221122111221), we get a palindrome (13432244223431).

The spelling of 12211122112210 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, two hundred ten".