20021201000027 has 2 divisors, whose sum is σ = 20021201000028. Its totient is φ = 20021201000026.

The previous prime is 20021200999973. The next prime is 20021201000089. The reversal of 20021201000027 is 72000010212002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021201000027 - 2⁶ = 20021200999963 is a prime.

It is a super-3 number, since 3×20021201000027³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20021200999969 and 20021201000014.

It is not a weakly prime, because it can be changed into another prime (20021201000627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010600500013 + 10010600500014.

It is an arithmetic number, because the mean of its divisors is an integer number (10010600500014).

Almost surely, 2^{20021201000027} is an apocalyptic number.

20021201000027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021201000027 is an equidigital number, since it uses as much as digits as its factorization.

20021201000027 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 17.

Adding to 20021201000027 its reverse (72000010212002), we get a palindrome (92021211212029).

The spelling of 20021201000027 in words is "twenty trillion, twenty-one billion, two hundred one million, twenty-seven", and thus it is an aban number.