212214400111 has 4 divisors (see below), whose sum is σ = 242530742992. Its totient is φ = 181898057232.

The previous prime is 212214400067. The next prime is 212214400159. The reversal of 212214400111 is 111004412212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212214400111 - 2⁹ = 212214399599 is a prime.

It is a super-2 number, since 2×212214400111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212400111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15158171430 + ... + 15158171443.

It is an arithmetic number, because the mean of its divisors is an integer number (60632685748).

Almost surely, 2^212214400111 is an apocalyptic number.

212214400111 is a deficient number, since it is larger than the sum of its proper divisors (30316342881).

212214400111 is an equidigital number, since it uses as much as digits as its factorization.

212214400111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30316342880.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212214400111 its reverse (111004412212), we get a palindrome (323218812323).

The spelling of 212214400111 in words is "two hundred twelve billion, two hundred fourteen million, four hundred thousand, one hundred eleven".