212002202111 has 4 divisors (see below), whose sum is σ = 242288230992. Its totient is φ = 181716173232.

The previous prime is 212002202059. The next prime is 212002202119. The reversal of 212002202111 is 111202200212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212002202111 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 (212002202119) 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, 15143014430 + ... + 15143014443.

It is an arithmetic number, because the mean of its divisors is an integer number (60572057748).

Almost surely, 2^212002202111 is an apocalyptic number.

212002202111 is a deficient number, since it is larger than the sum of its proper divisors (30286028881).

212002202111 is an equidigital number, since it uses as much as digits as its factorization.

212002202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30286028880.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212002202111 its reverse (111202200212), we get a palindrome (323204402323).

The spelling of 212002202111 in words is "two hundred twelve billion, two million, two hundred two thousand, one hundred eleven".