1202121071 has 2 divisors, whose sum is σ = 1202121072. Its totient is φ = 1202121070.

The previous prime is 1202121061. The next prime is 1202121103. The reversal of 1202121071 is 1701212021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202121071 - 2³⁰ = 128379247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601060535 + 601060536.

It is an arithmetic number, because the mean of its divisors is an integer number (601060536).

Almost surely, 2^1202121071 is an apocalyptic number.

1202121071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202121071 is an equidigital number, since it uses as much as digits as its factorization.

1202121071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1202121071 is about 34671.6176576750. The cubic root of 1202121071 is about 1063.2843046175.

Adding to 1202121071 its reverse (1701212021), we get a palindrome (2903333092).

The spelling of 1202121071 in words is "one billion, two hundred two million, one hundred twenty-one thousand, seventy-one".