212252224 has 14 divisors (see below), whose sum is σ = 421188134. Its totient is φ = 106126080.

The previous prime is 212252221. The next prime is 212252251. The reversal of 212252224 is 422252212.

It can be written as a sum of positive squares in only one way, i.e., 212226624 + 25600 = 14568^2 + 160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212252195 and 212252204.

It is not an unprimeable number, because it can be changed into a prime (212252221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1658157 + ... + 1658284.

Almost surely, 2^212252224 is an apocalyptic number.

It is an amenable number.

212252224 is a deficient number, since it is larger than the sum of its proper divisors (208935910).

212252224 is an equidigital number, since it uses as much as digits as its factorization.

212252224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316453 (or 3316443 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 212252224 is about 14568.8786116159. The cubic root of 212252224 is about 596.5095712566.

The spelling of 212252224 in words is "two hundred twelve million, two hundred fifty-two thousand, two hundred twenty-four".