20000000120101 has 2 divisors, whose sum is σ = 20000000120102. Its totient is φ = 20000000120100.

The previous prime is 20000000120077. The next prime is 20000000120141. The reversal of 20000000120101 is 10102100000002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19261337223076 + 738662897025 = 4388774^2 + 859455^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000000120101 - 2¹⁷ = 19999999989029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000000120141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000000060050 + 10000000060051.

It is an arithmetic number, because the mean of its divisors is an integer number (10000000060051).

Almost surely, 2^{20000000120101} is an apocalyptic number.

It is an amenable number.

20000000120101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000000120101 is an equidigital number, since it uses as much as digits as its factorization.

20000000120101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20000000120101 its reverse (10102100000002), we get a palindrome (30102100120103).

The spelling of 20000000120101 in words is "twenty trillion, one hundred twenty thousand, one hundred one".