100121121012071 has 2 divisors, whose sum is σ = 100121121012072. Its totient is φ = 100121121012070.

The previous prime is 100121121012061. The next prime is 100121121012119. The reversal of 100121121012071 is 170210121121001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121121012071 - 2¹⁰ = 100121121011047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121121012001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060560506035 + 50060560506036.

It is an arithmetic number, because the mean of its divisors is an integer number (50060560506036).

Almost surely, 2^{100121121012071} is an apocalyptic number.

100121121012071 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121121012071 is an equidigital number, since it uses as much as digits as its factorization.

100121121012071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 100121121012071 its reverse (170210121121001), we get a palindrome (270331242133072).

The spelling of 100121121012071 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-one million, twelve thousand, seventy-one".