212000222111 has 4 divisors (see below), whose sum is σ = 212041083000. Its totient is φ = 211959361224.

The previous prime is 212000222101. The next prime is 212000222153. The reversal of 212000222111 is 111222000212.

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 212000222111 - 2²² = 211996027807 is a prime.

It is a super-2 number, since 2×212000222111² (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 (212000222101) 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, 20422661 + ... + 20433038.

It is an arithmetic number, because the mean of its divisors is an integer number (53010270750).

Almost surely, 2^212000222111 is an apocalyptic number.

212000222111 is a deficient number, since it is larger than the sum of its proper divisors (40860889).

212000222111 is an equidigital number, since it uses as much as digits as its factorization.

212000222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40860888.

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

Adding to 212000222111 its reverse (111222000212), we get a palindrome (323222222323).

The spelling of 212000222111 in words is "two hundred twelve billion, two hundred twenty-two thousand, one hundred eleven".