211302229906 has 8 divisors (see below), whose sum is σ = 316974186684. Its totient is φ = 105644167680.

The previous prime is 211302229903. The next prime is 211302229907. The reversal of 211302229906 is 609922203112.

It can be written as a sum of positive squares in 2 ways, for example, as 202891689225 + 8410540681 = 450435^2 + 91709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211302229903) 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, 3435535 + ... + 3496498.

Almost surely, 2^211302229906 is an apocalyptic number.

211302229906 is a deficient number, since it is larger than the sum of its proper divisors (105671956778).

211302229906 is a wasteful number, since it uses less digits than its factorization.

211302229906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947276.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 211302229906 in words is "two hundred eleven billion, three hundred two million, two hundred twenty-nine thousand, nine hundred six".