2120202101117 has 2 divisors, whose sum is σ = 2120202101118. Its totient is φ = 2120202101116.

The previous prime is 2120202101077. The next prime is 2120202101119. The reversal of 2120202101117 is 7111012020212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2075368696996 + 44833404121 = 1440614^2 + 211739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120202101117 - 2²⁴ = 2120185323901 is a prime.

Together with 2120202101119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120202101119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060101050558 + 1060101050559.

It is an arithmetic number, because the mean of its divisors is an integer number (1060101050559).

Almost surely, 2^{2120202101117} is an apocalyptic number.

It is an amenable number.

2120202101117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120202101117 is an equidigital number, since it uses as much as digits as its factorization.

2120202101117 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 20.

Adding to 2120202101117 its reverse (7111012020212), we get a palindrome (9231214121329).

The spelling of 2120202101117 in words is "two trillion, one hundred twenty billion, two hundred two million, one hundred one thousand, one hundred seventeen".