212200022231 has 2 divisors, whose sum is σ = 212200022232. Its totient is φ = 212200022230.

The previous prime is 212200022213. The next prime is 212200022261. The reversal of 212200022231 is 132220002212.

Together with previous prime (212200022213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212200022231 - 2¹⁰ = 212200021207 is a prime.

It is a super-2 number, since 2×212200022231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212200022261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100011115 + 106100011116.

It is an arithmetic number, because the mean of its divisors is an integer number (106100011116).

Almost surely, 2^212200022231 is an apocalyptic number.

212200022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212200022231 is an equidigital number, since it uses as much as digits as its factorization.

212200022231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212200022231 its reverse (132220002212), we get a palindrome (344420024443).

The spelling of 212200022231 in words is "two hundred twelve billion, two hundred million, twenty-two thousand, two hundred thirty-one".