1202221121273 has 2 divisors, whose sum is σ = 1202221121274. Its totient is φ = 1202221121272.

The previous prime is 1202221121209. The next prime is 1202221121287. The reversal of 1202221121273 is 3721211222021.

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., 1116177459049 + 86043662224 = 1056493^2 + 293332^2 .

It is an emirp because it is prime and its reverse (3721211222021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202221121273 - 2⁶ = 1202221121209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202221121873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601110560636 + 601110560637.

It is an arithmetic number, because the mean of its divisors is an integer number (601110560637).

Almost surely, 2^{1202221121273} is an apocalyptic number.

It is an amenable number.

1202221121273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202221121273 is an equidigital number, since it uses as much as digits as its factorization.

1202221121273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 1202221121273 its reverse (3721211222021), we get a palindrome (4923432343294).

The spelling of 1202221121273 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred seventy-three".