21110021222219 has 8 divisors (see below), whose sum is σ = 21162156251520. Its totient is φ = 21057948003456.

The previous prime is 21110021222197. The next prime is 21110021222237. The reversal of 21110021222219 is 91222212001112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110021222219 is a prime.

It is a super-2 number, since 2×21110021222219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110021222299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14768699 + ... + 16134884.

It is an arithmetic number, because the mean of its divisors is an integer number (2645269531440).

Almost surely, 2^{21110021222219} is an apocalyptic number.

21110021222219 is a deficient number, since it is larger than the sum of its proper divisors (52135029301).

21110021222219 is a wasteful number, since it uses less digits than its factorization.

21110021222219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30905269.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 21110021222219 in words is "twenty-one trillion, one hundred ten billion, twenty-one million, two hundred twenty-two thousand, two hundred nineteen".