21122310219 has 8 divisors (see below), whose sum is σ = 28436508672. Its totient is φ = 13944825960.

The previous prime is 21122310197. The next prime is 21122310233. The reversal of 21122310219 is 91201322112.

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

It is not a de Polignac number, because 21122310219 - 2⁸ = 21122309963 is a prime.

It is a super-2 number, since 2×21122310219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122310289) 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 in 7 ways as a sum of consecutive naturals, for example, 34178187 + ... + 34178804.

It is an arithmetic number, because the mean of its divisors is an integer number (3554563584).

Almost surely, 2^21122310219 is an apocalyptic number.

21122310219 is a deficient number, since it is larger than the sum of its proper divisors (7314198453).

21122310219 is a wasteful number, since it uses less digits than its factorization.

21122310219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68357097.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 21122310219 in words is "twenty-one billion, one hundred twenty-two million, three hundred ten thousand, two hundred nineteen".