211122006 has 16 divisors (see below), whose sum is σ = 425570304. Its totient is φ = 69819624.

The previous prime is 211121987. The next prime is 211122007. The reversal of 211122006 is 600221112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137770 + ... + 139293.

It is an arithmetic number, because the mean of its divisors is an integer number (26598144).

Almost surely, 2^211122006 is an apocalyptic number.

211122006 is an abundant number, since it is smaller than the sum of its proper divisors (214448298).

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

211122006 is a wasteful number, since it uses less digits than its factorization.

211122006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277195.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 211122006 is about 14530.0380591380. The cubic root of 211122006 is about 595.4489054006.

Adding to 211122006 its reverse (600221112), we get a palindrome (811343118).

The spelling of 211122006 in words is "two hundred eleven million, one hundred twenty-two thousand, six".