12221001022141 has 2 divisors, whose sum is σ = 12221001022142. Its totient is φ = 12221001022140.

The previous prime is 12221001022117. The next prime is 12221001022159. The reversal of 12221001022141 is 14122010012221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10272313452025 + 1948687570116 = 3205045^2 + 1395954^2 .

It is an emirp because it is prime and its reverse (14122010012221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221001022141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221001022541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110500511070 + 6110500511071.

It is an arithmetic number, because the mean of its divisors is an integer number (6110500511071).

Almost surely, 2^{12221001022141} is an apocalyptic number.

It is an amenable number.

12221001022141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221001022141 is an equidigital number, since it uses as much as digits as its factorization.

12221001022141 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 12221001022141 its reverse (14122010012221), we get a palindrome (26343011034362).

The spelling of 12221001022141 in words is "twelve trillion, two hundred twenty-one billion, one million, twenty-two thousand, one hundred forty-one".