102212219 has 2 divisors, whose sum is σ = 102212220. Its totient is φ = 102212218.

The previous prime is 102212213. The next prime is 102212237. The reversal of 102212219 is 912212201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102212219 - 2¹⁶ = 102146683 is a prime.

It is a super-2 number, since 2×102212219² = 20894675425807922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102212219.

It is not a weakly prime, because it can be changed into another prime (102212213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106109 + 51106110.

It is an arithmetic number, because the mean of its divisors is an integer number (51106110).

Almost surely, 2^102212219 is an apocalyptic number.

102212219 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212219 is an equidigital number, since it uses as much as digits as its factorization.

102212219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 102212219 is about 10110.0058852604. The cubic root of 102212219 is about 467.5566865785.

The spelling of 102212219 in words is "one hundred two million, two hundred twelve thousand, two hundred nineteen".