212221231101 has 24 divisors (see below), whose sum is σ = 352009700640. Its totient is φ = 121849509600.

The previous prime is 212221231091. The next prime is 212221231111. The reversal of 212221231101 is 101132122212.

212221231101 is a `hidden beast` number, since 212 + 221 + 231 + 1 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (212221231091) and next prime (212221231111).

It is not a de Polignac number, because 212221231101 - 2¹³ = 212221222909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221231111) 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, 56409930 + ... + 56413691.

It is an arithmetic number, because the mean of its divisors is an integer number (14667070860).

Almost surely, 2^212221231101 is an apocalyptic number.

It is an amenable number.

212221231101 is a deficient number, since it is larger than the sum of its proper divisors (139788469539).

212221231101 is a wasteful number, since it uses less digits than its factorization.

212221231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112823657 (or 112823654 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212221231101 its reverse (101132122212), we get a palindrome (313353353313).

The spelling of 212221231101 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred one".