70212228 has 24 divisors (see below), whose sum is σ = 164445120. Its totient is φ = 23316000.

The previous prime is 70212187. The next prime is 70212257. The reversal of 70212228 is 82221207.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70212198 and 70212207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7648 + ... + 14103.

It is an arithmetic number, because the mean of its divisors is an integer number (6851880).

Almost surely, 2^70212228 is an apocalyptic number.

It is an amenable number.

70212228 is an abundant number, since it is smaller than the sum of its proper divisors (94232892).

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

70212228 is a wasteful number, since it uses less digits than its factorization.

70212228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22027 (or 22025 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 70212228 is about 8379.2737155436. The cubic root of 70212228 is about 412.5446107859.

The spelling of 70212228 in words is "seventy million, two hundred twelve thousand, two hundred twenty-eight".