210212000121111 has 8 divisors (see below), whose sum is σ = 282902131004544. Its totient is φ = 138831601325880.

The previous prime is 210212000121103. The next prime is 210212000121113. The reversal of 210212000121111 is 111121000212012.

It is a happy number.

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

It is not a de Polignac number, because 210212000121111 - 2³ = 210212000121103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212000121113) 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, 327433021675 + ... + 327433022316.

It is an arithmetic number, because the mean of its divisors is an integer number (35362766375568).

Almost surely, 2^{210212000121111} is an apocalyptic number.

210212000121111 is a deficient number, since it is larger than the sum of its proper divisors (72690130883433).

210212000121111 is a wasteful number, since it uses less digits than its factorization.

210212000121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654866044101.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210212000121111 its reverse (111121000212012), we get a palindrome (321333000333123).

Subtracting from 210212000121111 its reverse (111121000212012), we obtain a palindrome (99090999909099).

The spelling of 210212000121111 in words is "two hundred ten trillion, two hundred twelve billion, one hundred twenty-one thousand, one hundred eleven".