12222111122010 has 48 divisors (see below), whose sum is σ = 32298431373000. Its totient is φ = 3205799637120.

The previous prime is 12222111121991. The next prime is 12222111122047. The reversal of 12222111122010 is 1022111122221.

12222111122010 is a `hidden beast` number, since 1 + 222 + 211 + 1 + 1 + 220 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2372299211529 + 9849811910481 = 1540227^2 + 3138441^2 .

It is a super-2 number, since 2×12222111122010² (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 a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 1113119385 + ... + 1113130364.

Almost surely, 2^{12222111122010} is an apocalyptic number.

12222111122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222111122010 is an abundant number, since it is smaller than the sum of its proper divisors (20076320250990).

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

12222111122010 is a wasteful number, since it uses less digits than its factorization.

12222111122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226249823 (or 2226249820 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12222111122010 its reverse (1022111122221), we get a palindrome (13244222244231).

The spelling of 12222111122010 in words is "twelve trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, ten".