211111110022012 has 6 divisors (see below), whose sum is σ = 369444442538528. Its totient is φ = 105555555011004.

The previous prime is 211111110021961. The next prime is 211111110022049. The reversal of 211111110022012 is 210220011111112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26388888752748 + ... + 26388888752755.

Almost surely, 2^{211111110022012} is an apocalyptic number.

It is an amenable number.

211111110022012 is a deficient number, since it is larger than the sum of its proper divisors (158333332516516).

211111110022012 is a wasteful number, since it uses less digits than its factorization.

211111110022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52777777505507 (or 52777777505505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 211111110022012 its reverse (210220011111112), we get a palindrome (421331121133124).

The spelling of 211111110022012 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred ten million, twenty-two thousand, twelve".