20012112220201 has 2 divisors, whose sum is σ = 20012112220202. Its totient is φ = 20012112220200.

The previous prime is 20012112220169. The next prime is 20012112220213. The reversal of 20012112220201 is 10202221121002.

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., 15572305022976 + 4439807197225 = 3946176^2 + 2107085^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012112220201 - 2⁵ = 20012112220169 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012112220601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006056110100 + 10006056110101.

It is an arithmetic number, because the mean of its divisors is an integer number (10006056110101).

Almost surely, 2^{20012112220201} is an apocalyptic number.

It is an amenable number.

20012112220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012112220201 is an equidigital number, since it uses as much as digits as its factorization.

20012112220201 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 20012112220201 its reverse (10202221121002), we get a palindrome (30214333341203).

The spelling of 20012112220201 in words is "twenty trillion, twelve billion, one hundred twelve million, two hundred twenty thousand, two hundred one".