12220221122210 has 16 divisors (see below), whose sum is σ = 22081987121976. Its totient is φ = 4869068648448.

The previous prime is 12220221122203. The next prime is 12220221122261. The reversal of 12220221122210 is 1222112202221.

It can be written as a sum of positive squares in 4 ways, for example, as 9542124875089 + 2678096247121 = 3089033^2 + 1636489^2 .

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 7 ways as a sum of consecutive naturals, for example, 2377472357 + ... + 2377477496.

Almost surely, 2^{12220221122210} is an apocalyptic number.

12220221122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220221122210 is a deficient number, since it is larger than the sum of its proper divisors (9861765999766).

12220221122210 is a wasteful number, since it uses less digits than its factorization.

12220221122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754950117.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12220221122210 its reverse (1222112202221), we get a palindrome (13442333324431).

The spelling of 12220221122210 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred ten".