12221202020149 has 2 divisors, whose sum is σ = 12221202020150. Its totient is φ = 12221202020148.

The previous prime is 12221202020141. The next prime is 12221202020207. The reversal of 12221202020149 is 94102020212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6417391028049 + 5803810992100 = 2533257^2 + 2409110^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221202020149 - 2³ = 12221202020141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221202020141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110601010074 + 6110601010075.

It is an arithmetic number, because the mean of its divisors is an integer number (6110601010075).

Almost surely, 2^{12221202020149} is an apocalyptic number.

It is an amenable number.

12221202020149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221202020149 is an equidigital number, since it uses as much as digits as its factorization.

12221202020149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 12221202020149 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, twenty thousand, one hundred forty-nine".