70212230 has 32 divisors (see below), whose sum is σ = 138475008. Its totient is φ = 25420000.

The previous prime is 70212187. The next prime is 70212257. The reversal of 70212230 is 3221207.

It is a junction number, because it is equal to n+sod(n) for n = 70212199 and 70212208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26339 + ... + 28881.

It is an arithmetic number, because the mean of its divisors is an integer number (4327344).

Almost surely, 2^70212230 is an apocalyptic number.

70212230 is a deficient number, since it is larger than the sum of its proper divisors (68262778).

70212230 is a wasteful number, since it uses less digits than its factorization.

70212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 70212230 is about 8379.2738348857. The cubic root of 70212230 is about 412.5446147031.

Adding to 70212230 its reverse (3221207), we get a palindrome (73433437).

The spelling of 70212230 in words is "seventy million, two hundred twelve thousand, two hundred thirty".