212213103206 has 32 divisors (see below), whose sum is σ = 375487086240. Its totient is φ = 89004335616.

The previous prime is 212213103143. The next prime is 212213103229. The reversal of 212213103206 is 602301312212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8265116 + ... + 8290751.

It is an arithmetic number, because the mean of its divisors is an integer number (11733971445).

Almost surely, 2^212213103206 is an apocalyptic number.

212213103206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

212213103206 is a deficient number, since it is larger than the sum of its proper divisors (163273983034).

212213103206 is a wasteful number, since it uses less digits than its factorization.

212213103206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16555928.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212213103206 its reverse (602301312212), we get a palindrome (814514415418).

The spelling of 212213103206 in words is "two hundred twelve billion, two hundred thirteen million, one hundred three thousand, two hundred six".