212000311121 has 16 divisors (see below), whose sum is σ = 214899617280. Its totient is φ = 209125687680.

The previous prime is 212000311091. The next prime is 212000311169. The reversal of 212000311121 is 121113000212.

It is a cyclic number.

It is not a de Polignac number, because 212000311121 - 2¹⁸ = 212000048977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212000311096 and 212000311105.

It is not an unprimeable number, because it can be changed into a prime (212000311421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13541120 + ... + 13556766.

It is an arithmetic number, because the mean of its divisors is an integer number (13431226080).

Almost surely, 2^212000311121 is an apocalyptic number.

It is an amenable number.

212000311121 is a deficient number, since it is larger than the sum of its proper divisors (2899306159).

212000311121 is a wasteful number, since it uses less digits than its factorization.

212000311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16424.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212000311121 its reverse (121113000212), we get a palindrome (333113311333).

The spelling of 212000311121 in words is "two hundred twelve billion, three hundred eleven thousand, one hundred twenty-one".