212228802 has 32 divisors (see below), whose sum is σ = 472100160. Its totient is φ = 70670880.

The previous prime is 212228791. The next prime is 212228827. The reversal of 212228802 is 208822212.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 91902 + ... + 94182.

It is an arithmetic number, because the mean of its divisors is an integer number (14753130).

Almost surely, 2^212228802 is an apocalyptic number.

212228802 is an abundant number, since it is smaller than the sum of its proper divisors (259871358).

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

212228802 is a wasteful number, since it uses less digits than its factorization.

212228802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015 (or 4009 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 212228802 is about 14568.0747526912. The cubic root of 212228802 is about 596.4876288699.

The spelling of 212228802 in words is "two hundred twelve million, two hundred twenty-eight thousand, eight hundred two".