1214443203121 has 2 divisors, whose sum is σ = 1214443203122. Its totient is φ = 1214443203120.

The previous prime is 1214443203013. The next prime is 1214443203133. The reversal of 1214443203121 is 1213023444121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739667081521 + 474776121600 = 860039^2 + 689040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214443203121 - 2¹¹ = 1214443201073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1214443203121.

It is not a weakly prime, because it can be changed into another prime (1214443303121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607221601560 + 607221601561.

It is an arithmetic number, because the mean of its divisors is an integer number (607221601561).

Almost surely, 2^{1214443203121} is an apocalyptic number.

It is an amenable number.

1214443203121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214443203121 is an equidigital number, since it uses as much as digits as its factorization.

1214443203121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1214443203121 its reverse (1213023444121), we get a palindrome (2427466647242).

The spelling of 1214443203121 in words is "one trillion, two hundred fourteen billion, four hundred forty-three million, two hundred three thousand, one hundred twenty-one".