84224212 has 6 divisors (see below), whose sum is σ = 147392378. Its totient is φ = 42112104.

The previous prime is 84224123. The next prime is 84224221. The reversal of 84224212 is 21242248.

It can be written as a sum of positive squares in only one way, i.e., 83832336 + 391876 = 9156^2 + 626^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10528023 + ... + 10528030.

Almost surely, 2^84224212 is an apocalyptic number.

It is an amenable number.

84224212 is a deficient number, since it is larger than the sum of its proper divisors (63168166).

84224212 is a wasteful number, since it uses less digits than its factorization.

84224212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21056057 (or 21056055 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 84224212 is about 9177.3750059589. The cubic root of 84224212 is about 438.3412268365.

The spelling of 84224212 in words is "eighty-four million, two hundred twenty-four thousand, two hundred twelve".