12220122221012 has 24 divisors (see below), whose sum is σ = 21474656945280. Its totient is φ = 6084507623040.

The previous prime is 12220122220981. The next prime is 12220122221053. The reversal of 12220122221012 is 21012222102221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31560773 + ... + 31945619.

It is an arithmetic number, because the mean of its divisors is an integer number (894777372720).

Almost surely, 2^{12220122221012} is an apocalyptic number.

It is an amenable number.

12220122221012 is a deficient number, since it is larger than the sum of its proper divisors (9254534724268).

12220122221012 is a wasteful number, since it uses less digits than its factorization.

12220122221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418031 (or 418029 counting only the distinct ones).

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

Adding to 12220122221012 its reverse (21012222102221), we get a palindrome (33232344323233).

The spelling of 12220122221012 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, twelve".