21222200120027 has 2 divisors, whose sum is σ = 21222200120028. Its totient is φ = 21222200120026.

The previous prime is 21222200119957. The next prime is 21222200120039. The reversal of 21222200120027 is 72002100222212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21222200120027 - 2¹² = 21222200115931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21222200119984 and 21222200120011.

It is not a weakly prime, because it can be changed into another prime (21222200120327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611100060013 + 10611100060014.

It is an arithmetic number, because the mean of its divisors is an integer number (10611100060014).

Almost surely, 2^{21222200120027} is an apocalyptic number.

21222200120027 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222200120027 is an equidigital number, since it uses as much as digits as its factorization.

21222200120027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 21222200120027 its reverse (72002100222212), we get a palindrome (93224300342239).

The spelling of 21222200120027 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, one hundred twenty thousand, twenty-seven".