21920382119 has 2 divisors, whose sum is σ = 21920382120. Its totient is φ = 21920382118.

The previous prime is 21920382101. The next prime is 21920382151. The reversal of 21920382119 is 91128302912.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21920382119 is a prime.

It is a super-2 number, since 2×21920382119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21920382619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10960191059 + 10960191060.

It is an arithmetic number, because the mean of its divisors is an integer number (10960191060).

Almost surely, 2^21920382119 is an apocalyptic number.

21920382119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21920382119 is an equidigital number, since it uses as much as digits as its factorization.

21920382119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 21920382119 in words is "twenty-one billion, nine hundred twenty million, three hundred eighty-two thousand, one hundred nineteen".