12221111302111 has 2 divisors, whose sum is σ = 12221111302112. Its totient is φ = 12221111302110.

The previous prime is 12221111302093. The next prime is 12221111302139. The reversal of 12221111302111 is 11120311112221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12221111302111 - 2²¹ = 12221109204959 is a prime.

It is a super-2 number, since 2×12221111302111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221111309111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110555651055 + 6110555651056.

It is an arithmetic number, because the mean of its divisors is an integer number (6110555651056).

Almost surely, 2^{12221111302111} is an apocalyptic number.

12221111302111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221111302111 is an equidigital number, since it uses as much as digits as its factorization.

12221111302111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 12221111302111 its reverse (11120311112221), we get a palindrome (23341422414332).

The spelling of 12221111302111 in words is "twelve trillion, two hundred twenty-one billion, one hundred eleven million, three hundred two thousand, one hundred eleven".