12320111022210 has 128 divisors (see below), whose sum is σ = 33149799970560. Its totient is φ = 3255755424768.

The previous prime is 12320111022061. The next prime is 12320111022251. The reversal of 12320111022210 is 1222011102321.

12320111022210 is a `hidden beast` number, since 1 + 2 + 320 + 1 + 110 + 22 + 210 = 666.

It is a super-2 number, since 2×12320111022210² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207529852 + ... + 207589208.

It is an arithmetic number, because the mean of its divisors is an integer number (258982812270).

Almost surely, 2^{12320111022210} is an apocalyptic number.

12320111022210 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 12320111022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16574899985280).

12320111022210 is an abundant number, since it is smaller than the sum of its proper divisors (20829688948350).

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

12320111022210 is a wasteful number, since it uses less digits than its factorization.

12320111022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66289 (or 66283 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12320111022210 its reverse (1222011102321), we get a palindrome (13542122124531).

The spelling of 12320111022210 in words is "twelve trillion, three hundred twenty billion, one hundred eleven million, twenty-two thousand, two hundred ten".