212212303101 has 24 divisors (see below), whose sum is σ = 324928598904. Its totient is φ = 133001594880.

The previous prime is 212212303099. The next prime is 212212303103. The reversal of 212212303101 is 101303212212.

212212303101 is a `hidden beast` number, since 2 + 122 + 1 + 230 + 310 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (212212303099) and next prime (212212303103).

It can be written as a sum of positive squares in 4 ways, for example, as 1173131001 + 211039172100 = 34251^2 + 459390^2 .

It is not a de Polignac number, because 212212303101 - 2¹ = 212212303099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212303103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 652386 + ... + 921971.

It is an arithmetic number, because the mean of its divisors is an integer number (13538691621).

Almost surely, 2^212212303101 is an apocalyptic number.

It is an amenable number.

212212303101 is a deficient number, since it is larger than the sum of its proper divisors (112716295803).

212212303101 is a wasteful number, since it uses less digits than its factorization.

212212303101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575261 (or 1575258 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212212303101 its reverse (101303212212), we get a palindrome (313515515313).

The spelling of 212212303101 in words is "two hundred twelve billion, two hundred twelve million, three hundred three thousand, one hundred one".