212247419 has 2 divisors, whose sum is σ = 212247420. Its totient is φ = 212247418.

The previous prime is 212247403. The next prime is 212247439. The reversal of 212247419 is 914742212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212247419 - 2⁴ = 212247403 is a prime.

It is a super-2 number, since 2×212247419² = 90097933744323122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212247439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106123709 + 106123710.

It is an arithmetic number, because the mean of its divisors is an integer number (106123710).

Almost surely, 2^212247419 is an apocalyptic number.

212247419 is a deficient number, since it is larger than the sum of its proper divisors (1).

212247419 is an equidigital number, since it uses as much as digits as its factorization.

212247419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 212247419 is about 14568.7137043735. The cubic root of 212247419 is about 596.5050699294.

The spelling of 212247419 in words is "two hundred twelve million, two hundred forty-seven thousand, four hundred nineteen".