212212222333101 has 10 divisors (see below), whose sum is σ = 317008381510062. Its totient is φ = 141474814888680.

The previous prime is 212212222333081. The next prime is 212212222333141. The reversal of 212212222333101 is 101333222212212.

212212222333101 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 1 + 2 + 222 + 333 + 101 = 666.

It can be written as a sum of positive squares in only one way, i.e., 209748888944100 + 2463333389001 = 14482710^2 + 1569501^2 .

It is not a de Polignac number, because 212212222333101 - 2¹⁵ = 212212222300333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212222333141) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1309951989630 + ... + 1309951989791.

Almost surely, 2^{212212222333101} is an apocalyptic number.

It is an amenable number.

212212222333101 is a deficient number, since it is larger than the sum of its proper divisors (104796159176961).

212212222333101 is an equidigital number, since it uses as much as digits as its factorization.

212212222333101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619903979433 (or 2619903979424 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 212212222333101 its reverse (101333222212212), we get a palindrome (313545444545313).

The spelling of 212212222333101 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred twenty-two million, three hundred thirty-three thousand, one hundred one".