210212011111 has 8 divisors (see below), whose sum is σ = 219357661824. Its totient is φ = 201066860280.

The previous prime is 210212011063. The next prime is 210212011147. The reversal of 210212011111 is 111110212012.

It is a happy number.

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 210212011111 - 2⁹ = 210212010599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210212011091 and 210212011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212011211) 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, 920580 + ... + 1126006.

It is an arithmetic number, because the mean of its divisors is an integer number (27419707728).

Almost surely, 2^210212011111 is an apocalyptic number.

210212011111 is a deficient number, since it is larger than the sum of its proper divisors (9145650713).

210212011111 is a wasteful number, since it uses less digits than its factorization.

210212011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249941.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210212011111 its reverse (111110212012), we get a palindrome (321322223123).

The spelling of 210212011111 in words is "two hundred ten billion, two hundred twelve million, eleven thousand, one hundred eleven".