12221222201011 has 2 divisors, whose sum is σ = 12221222201012. Its totient is φ = 12221222201010.

The previous prime is 12221222201009. The next prime is 12221222201051. The reversal of 12221222201011 is 11010222212221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12221222201011 - 2¹ = 12221222201009 is a prime.

Together with 12221222201009, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12221222201011.

It is not a weakly prime, because it can be changed into another prime (12221222201051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110611100505 + 6110611100506.

It is an arithmetic number, because the mean of its divisors is an integer number (6110611100506).

Almost surely, 2^{12221222201011} is an apocalyptic number.

12221222201011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221222201011 is an equidigital number, since it uses as much as digits as its factorization.

12221222201011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221222201011 its reverse (11010222212221), we get a palindrome (23231444413232).

The spelling of 12221222201011 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, eleven".