1202421197 has 2 divisors, whose sum is σ = 1202421198. Its totient is φ = 1202421196.

The previous prime is 1202421151. The next prime is 1202421247. The reversal of 1202421197 is 7911242021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1201939561 + 481636 = 34669^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202421197 - 2¹⁰ = 1202420173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202421107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601210598 + 601210599.

It is an arithmetic number, because the mean of its divisors is an integer number (601210599).

Almost surely, 2^1202421197 is an apocalyptic number.

It is an amenable number.

1202421197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202421197 is an equidigital number, since it uses as much as digits as its factorization.

1202421197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1202421197 is about 34675.9455098199. The cubic root of 1202421197 is about 1063.3727850873.

The spelling of 1202421197 in words is "one billion, two hundred two million, four hundred twenty-one thousand, one hundred ninety-seven".