922278213 has 12 divisors (see below), whose sum is σ = 1378117260. Its totient is φ = 593650176.

The previous prime is 922278193. The next prime is 922278239. The reversal of 922278213 is 312872229.

It can be written as a sum of positive squares in 2 ways, for example, as 337750884 + 584527329 = 18378^2 + 24177^2 .

It is not a de Polignac number, because 922278213 - 2¹⁴ = 922261829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (922278283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1766556 + ... + 1767077.

It is an arithmetic number, because the mean of its divisors is an integer number (114843105).

Almost surely, 2^922278213 is an apocalyptic number.

It is an amenable number.

922278213 is a deficient number, since it is larger than the sum of its proper divisors (455839047).

922278213 is a wasteful number, since it uses less digits than its factorization.

922278213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533668 (or 3533665 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 922278213 is about 30369.0337844325. The cubic root of 922278213 is about 973.3909776826.

The spelling of 922278213 in words is "nine hundred twenty-two million, two hundred seventy-eight thousand, two hundred thirteen".