211229196 has 12 divisors (see below), whose sum is σ = 492868152. Its totient is φ = 70409728.

The previous prime is 211229191. The next prime is 211229197. The reversal of 211229196 is 691922112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (211229191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8801205 + ... + 8801228.

It is an arithmetic number, because the mean of its divisors is an integer number (41072346).

Almost surely, 2^211229196 is an apocalyptic number.

It is an amenable number.

211229196 is an abundant number, since it is smaller than the sum of its proper divisors (281638956).

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

211229196 is a wasteful number, since it uses less digits than its factorization.

211229196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17602440 (or 17602438 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 211229196 is about 14533.7261567707. The cubic root of 211229196 is about 595.5496613104.

The spelling of 211229196 in words is "two hundred eleven million, two hundred twenty-nine thousand, one hundred ninety-six".