212422319 has 4 divisors (see below), whose sum is σ = 221658096. Its totient is φ = 203186544.

The previous prime is 212422307. The next prime is 212422333. The reversal of 212422319 is 913224212.

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 212422319 - 2²⁴ = 195645103 is a prime.

It is a super-2 number, since 2×212422319² = 90246483218675522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212422219) 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, 4617854 + ... + 4617899.

It is an arithmetic number, because the mean of its divisors is an integer number (55414524).

Almost surely, 2^212422319 is an apocalyptic number.

212422319 is a deficient number, since it is larger than the sum of its proper divisors (9235777).

212422319 is an equidigital number, since it uses as much as digits as its factorization.

212422319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9235776.

The product of its digits is 1728, while the sum is 26.

The square root of 212422319 is about 14574.7150572490. The cubic root of 212422319 is about 596.6688726168.

The spelling of 212422319 in words is "two hundred twelve million, four hundred twenty-two thousand, three hundred nineteen".