212212200211111 has 8 divisors (see below), whose sum is σ = 215772206274800. Its totient is φ = 208654810842240.

The previous prime is 212212200211091. The next prime is 212212200211117. The reversal of 212212200211111 is 111112002212212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212212200211111 - 2²⁹ = 212211663340199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212200211117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654010146 + ... + 654334543.

It is an arithmetic number, because the mean of its divisors is an integer number (26971525784350).

Almost surely, 2^{212212200211111} is an apocalyptic number.

212212200211111 is a deficient number, since it is larger than the sum of its proper divisors (3560006063689).

212212200211111 is a wasteful number, since it uses less digits than its factorization.

212212200211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308347409.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212212200211111 its reverse (111112002212212), we get a palindrome (323324202423323).

The spelling of 212212200211111 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred million, two hundred eleven thousand, one hundred eleven".