21032102219 has 2 divisors, whose sum is σ = 21032102220. Its totient is φ = 21032102218.

The previous prime is 21032102159. The next prime is 21032102227. The reversal of 21032102219 is 91220123012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21032102219 - 2⁸ = 21032101963 is a prime.

It is a super-2 number, since 2×21032102219² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21032102194 and 21032102203.

It is not a weakly prime, because it can be changed into another prime (21032102249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516051109 + 10516051110.

It is an arithmetic number, because the mean of its divisors is an integer number (10516051110).

Almost surely, 2^21032102219 is an apocalyptic number.

21032102219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032102219 is an equidigital number, since it uses as much as digits as its factorization.

21032102219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 21032102219 in words is "twenty-one billion, thirty-two million, one hundred two thousand, two hundred nineteen".