20112220211263 has 2 divisors, whose sum is σ = 20112220211264. Its totient is φ = 20112220211262.

The previous prime is 20112220211117. The next prime is 20112220211273. The reversal of 20112220211263 is 36211202221102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112220211263 - 2²¹ = 20112218114111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112220211273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056110105631 + 10056110105632.

It is an arithmetic number, because the mean of its divisors is an integer number (10056110105632).

Almost surely, 2^{20112220211263} is an apocalyptic number.

20112220211263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112220211263 is an equidigital number, since it uses as much as digits as its factorization.

20112220211263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 20112220211263 its reverse (36211202221102), we get a palindrome (56323422432365).

The spelling of 20112220211263 in words is "twenty trillion, one hundred twelve billion, two hundred twenty million, two hundred eleven thousand, two hundred sixty-three".