21220101110983 has 2 divisors, whose sum is σ = 21220101110984. Its totient is φ = 21220101110982.

The previous prime is 21220101110951. The next prime is 21220101111031. The reversal of 21220101110983 is 38901110102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21220101110983 - 2⁵ = 21220101110951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21220101110083) 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, 10610050555491 + 10610050555492.

It is an arithmetic number, because the mean of its divisors is an integer number (10610050555492).

Almost surely, 2^{21220101110983} is an apocalyptic number.

21220101110983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220101110983 is an equidigital number, since it uses as much as digits as its factorization.

21220101110983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 21220101110983 in words is "twenty-one trillion, two hundred twenty billion, one hundred one million, one hundred ten thousand, nine hundred eighty-three".