12221222020011 has 16 divisors (see below), whose sum is σ = 18172820858400. Its totient is φ = 8117193307104.

The previous prime is 12221222019971. The next prime is 12221222020019. The reversal of 12221222020011 is 11002022212221.

It is a happy number.

12221222020011 is a `hidden beast` number, since 1 + 22 + 212 + 220 + 200 + 11 = 666.

It is not a de Polignac number, because 12221222020011 - 2²¹ = 12221219922859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221222020019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841327036 + ... + 841341561.

It is an arithmetic number, because the mean of its divisors is an integer number (1135801303650).

Almost surely, 2^{12221222020011} is an apocalyptic number.

12221222020011 is a deficient number, since it is larger than the sum of its proper divisors (5951598838389).

12221222020011 is a wasteful number, since it uses less digits than its factorization.

12221222020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682668875 (or 1682668869 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221222020011 its reverse (11002022212221), we get a palindrome (23223244232232).

The spelling of 12221222020011 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, eleven".