21022100101219 has 4 divisors (see below), whose sum is σ = 24025257258544. Its totient is φ = 18018942943896.

The previous prime is 21022100101141. The next prime is 21022100101351. The reversal of 21022100101219 is 91210100122012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21022100101219 - 2³¹ = 21019952617571 is a prime.

It is a super-2 number, since 2×21022100101219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21022100101219.

It is not an unprimeable number, because it can be changed into a prime (21022100104219) 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 in 3 ways as a sum of consecutive naturals, for example, 1501578578652 + ... + 1501578578665.

It is an arithmetic number, because the mean of its divisors is an integer number (6006314314636).

Almost surely, 2^{21022100101219} is an apocalyptic number.

21022100101219 is a deficient number, since it is larger than the sum of its proper divisors (3003157157325).

21022100101219 is an equidigital number, since it uses as much as digits as its factorization.

21022100101219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003157157324.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 21022100101219 in words is "twenty-one trillion, twenty-two billion, one hundred million, one hundred one thousand, two hundred nineteen".