21122100112219 has 2 divisors, whose sum is σ = 21122100112220. Its totient is φ = 21122100112218.

The previous prime is 21122100112171. The next prime is 21122100112259. The reversal of 21122100112219 is 91221100122112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21122100112219 - 2¹¹ = 21122100110171 is a prime.

It is a super-2 number, since 2×21122100112219² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122100112193 and 21122100112202.

It is not a weakly prime, because it can be changed into another prime (21122100112259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561050056109 + 10561050056110.

It is an arithmetic number, because the mean of its divisors is an integer number (10561050056110).

Almost surely, 2^{21122100112219} is an apocalyptic number.

21122100112219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122100112219 is an equidigital number, since it uses as much as digits as its factorization.

21122100112219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 21122100112219 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred million, one hundred twelve thousand, two hundred nineteen".