122021000027 has 2 divisors, whose sum is σ = 122021000028. Its totient is φ = 122021000026.

The previous prime is 122020999999. The next prime is 122021000029. The reversal of 122021000027 is 720000120221.

It is a strong prime.

It is an emirp because it is prime and its reverse (720000120221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122021000027 - 2¹⁶ = 122020934491 is a prime.

Together with 122021000029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122020999969 and 122021000014.

It is not a weakly prime, because it can be changed into another prime (122021000029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010500013 + 61010500014.

It is an arithmetic number, because the mean of its divisors is an integer number (61010500014).

Almost surely, 2^122021000027 is an apocalyptic number.

122021000027 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021000027 is an equidigital number, since it uses as much as digits as its factorization.

122021000027 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 122021000027 its reverse (720000120221), we get a palindrome (842021120248).

The spelling of 122021000027 in words is "one hundred twenty-two billion, twenty-one million, twenty-seven", and thus it is an aban number.