1000121222071 has 2 divisors, whose sum is σ = 1000121222072. Its totient is φ = 1000121222070.

The previous prime is 1000121222059. The next prime is 1000121222129. The reversal of 1000121222071 is 1702221210001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000121222071 - 2²⁵ = 1000087667639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000121022071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500060611035 + 500060611036.

It is an arithmetic number, because the mean of its divisors is an integer number (500060611036).

Almost surely, 2^{1000121222071} is an apocalyptic number.

1000121222071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000121222071 is an equidigital number, since it uses as much as digits as its factorization.

1000121222071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 1000121222071 its reverse (1702221210001), we get a palindrome (2702342432072).

The spelling of 1000121222071 in words is "one trillion, one hundred twenty-one million, two hundred twenty-two thousand, seventy-one".