212110111121 has 8 divisors (see below), whose sum is σ = 223323717600. Its totient is φ = 200901496320.

The previous prime is 212110111061. The next prime is 212110111139. The reversal of 212110111121 is 121111011212.

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 212110111121 - 2¹⁴ = 212110094737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110111096 and 212110111105.

It is not an unprimeable number, because it can be changed into a prime (212110116121) 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, 1160531 + ... + 1330808.

It is an arithmetic number, because the mean of its divisors is an integer number (27915464700).

Almost surely, 2^212110111121 is an apocalyptic number.

It is an amenable number.

212110111121 is a deficient number, since it is larger than the sum of its proper divisors (11213606479).

212110111121 is a wasteful number, since it uses less digits than its factorization.

212110111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495839.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212110111121 its reverse (121111011212), we get a palindrome (333221122333).

Subtracting from 212110111121 its reverse (121111011212), we obtain a palindrome (90999099909).

The spelling of 212110111121 in words is "two hundred twelve billion, one hundred ten million, one hundred eleven thousand, one hundred twenty-one".