20112120202201 has 2 divisors, whose sum is σ = 20112120202202. Its totient is φ = 20112120202200.

The previous prime is 20112120202177. The next prime is 20112120202211. The reversal of 20112120202201 is 10220202121102.

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., 19524697592976 + 587422609225 = 4418676^2 + 766435^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112120202201 - 2⁷ = 20112120202073 is a prime.

It is not a weakly prime, because it can be changed into another prime (20112120202211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056060101100 + 10056060101101.

It is an arithmetic number, because the mean of its divisors is an integer number (10056060101101).

Almost surely, 2^{20112120202201} is an apocalyptic number.

It is an amenable number.

20112120202201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112120202201 is an equidigital number, since it uses as much as digits as its factorization.

20112120202201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20112120202201 its reverse (10220202121102), we get a palindrome (30332322323303).

The spelling of 20112120202201 in words is "twenty trillion, one hundred twelve billion, one hundred twenty million, two hundred two thousand, two hundred one".