100020121200047 has 2 divisors, whose sum is σ = 100020121200048. Its totient is φ = 100020121200046.

The previous prime is 100020121199983. The next prime is 100020121200059. The reversal of 100020121200047 is 740002121020001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100020121200047 - 2⁶ = 100020121199983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100020121250047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010060600023 + 50010060600024.

It is an arithmetic number, because the mean of its divisors is an integer number (50010060600024).

Almost surely, 2^{100020121200047} is an apocalyptic number.

100020121200047 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020121200047 is an equidigital number, since it uses as much as digits as its factorization.

100020121200047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 100020121200047 its reverse (740002121020001), we get a palindrome (840022242220048).

The spelling of 100020121200047 in words is "one hundred trillion, twenty billion, one hundred twenty-one million, two hundred thousand, forty-seven".