212222101200111 has 12 divisors (see below), whose sum is σ = 317113484552280. Its totient is φ = 136602731806800.

The previous prime is 212222101200071. The next prime is 212222101200143. The reversal of 212222101200111 is 111002101222212.

212222101200111 is a `hidden beast` number, since 2 + 1 + 222 + 210 + 120 + 0 + 111 = 666.

It is not a de Polignac number, because 212222101200111 - 2⁹ = 212222101199599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222101200191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406555749165 + ... + 406555749686.

It is an arithmetic number, because the mean of its divisors is an integer number (26426123712690).

Almost surely, 2^{212222101200111} is an apocalyptic number.

212222101200111 is a deficient number, since it is larger than the sum of its proper divisors (104891383352169).

212222101200111 is a wasteful number, since it uses less digits than its factorization.

212222101200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813111498886 (or 813111498883 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212222101200111 its reverse (111002101222212), we get a palindrome (323224202422323).

The spelling of 212222101200111 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred one million, two hundred thousand, one hundred eleven".