212254422 has 32 divisors (see below), whose sum is σ = 451029600. Its totient is φ = 66463488.

The previous prime is 212254403. The next prime is 212254433. The reversal of 212254422 is 224452212.

It is a junction number, because it is equal to n+sod(n) for n = 212254392 and 212254401.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10047 + ... + 22922.

It is an arithmetic number, because the mean of its divisors is an integer number (14094675).

Almost surely, 2^212254422 is an apocalyptic number.

212254422 is an abundant number, since it is smaller than the sum of its proper divisors (238775178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212254422 is a wasteful number, since it uses less digits than its factorization.

212254422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33040.

The product of its digits is 2560, while the sum is 24.

The square root of 212254422 is about 14568.9540461901. The cubic root of 212254422 is about 596.5116303218.

The spelling of 212254422 in words is "two hundred twelve million, two hundred fifty-four thousand, four hundred twenty-two".