1202003221 has 2 divisors, whose sum is σ = 1202003222. Its totient is φ = 1202003220.

The previous prime is 1202003219. The next prime is 1202003267. The reversal of 1202003221 is 1223002021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1031308996 + 170694225 = 32114^2 + 13065^2 .

It is an emirp because it is prime and its reverse (1223002021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202003221 - 2¹ = 1202003219 is a prime.

Together with 1202003219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202003321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601001610 + 601001611.

It is an arithmetic number, because the mean of its divisors is an integer number (601001611).

Almost surely, 2^1202003221 is an apocalyptic number.

It is an amenable number.

1202003221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202003221 is an equidigital number, since it uses as much as digits as its factorization.

1202003221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1202003221 is about 34669.9180991245. The cubic root of 1202003221 is about 1063.2495571051.

Adding to 1202003221 its reverse (1223002021), we get a palindrome (2425005242).

The spelling of 1202003221 in words is "one billion, two hundred two million, three thousand, two hundred twenty-one".