21212182119 has 8 divisors (see below), whose sum is σ = 28286314480. Its totient is φ = 14139752256.

The previous prime is 21212182099. The next prime is 21212182163. The reversal of 21212182119 is 91128121212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21212182119 - 2¹¹ = 21212180071 is a prime.

It is a super-2 number, since 2×21212182119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21212182219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396262 + ... + 446595.

It is an arithmetic number, because the mean of its divisors is an integer number (3535789310).

Almost surely, 2^21212182119 is an apocalyptic number.

21212182119 is a deficient number, since it is larger than the sum of its proper divisors (7074132361).

21212182119 is an equidigital number, since it uses as much as digits as its factorization.

21212182119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851249.

The product of its digits is 1152, while the sum is 30.

The spelling of 21212182119 in words is "twenty-one billion, two hundred twelve million, one hundred eighty-two thousand, one hundred nineteen".