212301111111 has 8 divisors (see below), whose sum is σ = 284283033840. Its totient is φ = 140926631232.

The previous prime is 212301111107. The next prime is 212301111119. The reversal of 212301111111 is 111111103212.

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

It is not a de Polignac number, because 212301111111 - 2² = 212301111107 is a prime.

212301111111 is a modest number, since divided by 1111111 gives 21230 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212301111119) 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, 151859896 + ... + 151861293.

It is an arithmetic number, because the mean of its divisors is an integer number (35535379230).

Almost surely, 2^212301111111 is an apocalyptic number.

212301111111 is a deficient number, since it is larger than the sum of its proper divisors (71981922729).

212301111111 is a wasteful number, since it uses less digits than its factorization.

212301111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303721425.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 212301111111 its reverse (111111103212), we get a palindrome (323412214323).

The spelling of 212301111111 in words is "two hundred twelve billion, three hundred one million, one hundred eleven thousand, one hundred eleven".