1202120197 has 2 divisors, whose sum is σ = 1202120198. Its totient is φ = 1202120196.

The previous prime is 1202120141. The next prime is 1202120239. The reversal of 1202120197 is 7910212021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 960442081 + 241678116 = 30991^2 + 15546^2 .

It is an emirp because it is prime and its reverse (7910212021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202120197 - 2²⁷ = 1067902469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202120797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601060098 + 601060099.

It is an arithmetic number, because the mean of its divisors is an integer number (601060099).

Almost surely, 2^1202120197 is an apocalyptic number.

It is an amenable number.

1202120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202120197 is an equidigital number, since it uses as much as digits as its factorization.

1202120197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1202120197 is about 34671.6050537035. The cubic root of 1202120197 is about 1063.2840469311.

The spelling of 1202120197 in words is "one billion, two hundred two million, one hundred twenty thousand, one hundred ninety-seven".