21222212120983 has 2 divisors, whose sum is σ = 21222212120984. Its totient is φ = 21222212120982.

The previous prime is 21222212120953. The next prime is 21222212121013. The reversal of 21222212120983 is 38902121222212.

It is a balanced prime because it is at equal distance from previous prime (21222212120953) and next prime (21222212121013).

It is a cyclic number.

It is not a de Polignac number, because 21222212120983 - 2⁵ = 21222212120951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21222212120903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611106060491 + 10611106060492.

It is an arithmetic number, because the mean of its divisors is an integer number (10611106060492).

Almost surely, 2^{21222212120983} is an apocalyptic number.

21222212120983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222212120983 is an equidigital number, since it uses as much as digits as its factorization.

21222212120983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 21222212120983 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, nine hundred eighty-three".