12221000012141 has 2 divisors, whose sum is σ = 12221000012142. Its totient is φ = 12221000012140.

The previous prime is 12221000012113. The next prime is 12221000012321. The reversal of 12221000012141 is 14121000012221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11405283963241 + 815716048900 = 3377171^2 + 903170^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221000012141 - 2⁶ = 12221000012077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221000017141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110500006070 + 6110500006071.

It is an arithmetic number, because the mean of its divisors is an integer number (6110500006071).

Almost surely, 2^{12221000012141} is an apocalyptic number.

It is an amenable number.

12221000012141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221000012141 is an equidigital number, since it uses as much as digits as its factorization.

12221000012141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12221000012141 its reverse (14121000012221), we get a palindrome (26342000024362).

The spelling of 12221000012141 in words is "twelve trillion, two hundred twenty-one billion, twelve thousand, one hundred forty-one".