211353330 has 16 divisors (see below), whose sum is σ = 507248064. Its totient is φ = 56360880.

The previous prime is 211353301. The next prime is 211353377. The reversal of 211353330 is 33353112.

211353330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211353297 and 211353306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3522526 + ... + 3522585.

It is an arithmetic number, because the mean of its divisors is an integer number (31703004).

Almost surely, 2^211353330 is an apocalyptic number.

211353330 is an abundant number, since it is smaller than the sum of its proper divisors (295894734).

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

211353330 is a wasteful number, since it uses less digits than its factorization.

211353330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045121.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 211353330 is about 14537.9960792401. The cubic root of 211353330 is about 595.6663015696. Note that the first 3 decimals are identical.

The spelling of 211353330 in words is "two hundred eleven million, three hundred fifty-three thousand, three hundred thirty".