212122211111011 has 8 divisors (see below), whose sum is σ = 214240660926624. Its totient is φ = 210007993964160.

The previous prime is 212122211110991. The next prime is 212122211111059. The reversal of 212122211111011 is 110111112221212.

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 212122211111011 - 2¹⁹ = 212122210586723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212122211111011.

It is not an unprimeable number, because it can be changed into a prime (212182211111011) 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, 1058066460 + ... + 1058266921.

It is an arithmetic number, because the mean of its divisors is an integer number (26780082615828).

Almost surely, 2^{212122211111011} is an apocalyptic number.

212122211111011 is a deficient number, since it is larger than the sum of its proper divisors (2118449815613).

212122211111011 is a wasteful number, since it uses less digits than its factorization.

212122211111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116334381.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 212122211111011 its reverse (110111112221212), we get a palindrome (322233323332223).

The spelling of 212122211111011 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, eleven".