12221111242201 has 2 divisors, whose sum is σ = 12221111242202. Its totient is φ = 12221111242200.

The previous prime is 12221111242181. The next prime is 12221111242231. The reversal of 12221111242201 is 10224211112221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10431937482201 + 1789173760000 = 3229851^2 + 1337600^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221111242201 - 2²⁹ = 12220574371289 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221111242231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110555621100 + 6110555621101.

It is an arithmetic number, because the mean of its divisors is an integer number (6110555621101).

Almost surely, 2^{12221111242201} is an apocalyptic number.

It is an amenable number.

12221111242201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221111242201 is an equidigital number, since it uses as much as digits as its factorization.

12221111242201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 12221111242201 its reverse (10224211112221), we get a palindrome (22445322354422).

The spelling of 12221111242201 in words is "twelve trillion, two hundred twenty-one billion, one hundred eleven million, two hundred forty-two thousand, two hundred one".