10212819 has 4 divisors (see below), whose sum is σ = 13617096. Its totient is φ = 6808544.

The previous prime is 10212809. The next prime is 10212821. The reversal of 10212819 is 91821201.

10212819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 10212819 - 2⁷ = 10212691 is a prime.

It is a super-2 number, since 2×10212819² = 208603343853522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10212809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702134 + ... + 1702139.

It is an arithmetic number, because the mean of its divisors is an integer number (3404274).

Almost surely, 2^10212819 is an apocalyptic number.

10212819 is a deficient number, since it is larger than the sum of its proper divisors (3404277).

10212819 is an equidigital number, since it uses as much as digits as its factorization.

10212819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404276.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 10212819 is about 3195.7501466792. The cubic root of 10212819 is about 216.9611021333.

It can be divided in two parts, 102 and 12819, that added together give a palindrome (12921).

The spelling of 10212819 in words is "ten million, two hundred twelve thousand, eight hundred nineteen".