100121111022071 has 2 divisors, whose sum is σ = 100121111022072. Its totient is φ = 100121111022070.

The previous prime is 100121111022047. The next prime is 100121111022109. The reversal of 100121111022071 is 170220111121001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121111022071 - 2¹⁴ = 100121111005687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121111022671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060555511035 + 50060555511036.

It is an arithmetic number, because the mean of its divisors is an integer number (50060555511036).

Almost surely, 2^{100121111022071} is an apocalyptic number.

100121111022071 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121111022071 is an equidigital number, since it uses as much as digits as its factorization.

100121111022071 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 20.

Adding to 100121111022071 its reverse (170220111121001), we get a palindrome (270341222143072).

The spelling of 100121111022071 in words is "one hundred trillion, one hundred twenty-one billion, one hundred eleven million, twenty-two thousand, seventy-one".