20021011202263 has 2 divisors, whose sum is σ = 20021011202264. Its totient is φ = 20021011202262.

The previous prime is 20021011202207. The next prime is 20021011202273. The reversal of 20021011202263 is 36220211012002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021011202263 - 2³⁷ = 19883572248791 is a prime.

It is a super-2 number, since 2×20021011202263² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021011202273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010505601131 + 10010505601132.

It is an arithmetic number, because the mean of its divisors is an integer number (10010505601132).

Almost surely, 2^{20021011202263} is an apocalyptic number.

20021011202263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021011202263 is an equidigital number, since it uses as much as digits as its factorization.

20021011202263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20021011202263 its reverse (36220211012002), we get a palindrome (56241222214265).

The spelling of 20021011202263 in words is "twenty trillion, twenty-one billion, eleven million, two hundred two thousand, two hundred sixty-three".