212112000121 has 12 divisors (see below), whose sum is σ = 249138095232. Its totient is φ = 180045133128.

The previous prime is 212112000119. The next prime is 212112000137. The reversal of 212112000121 is 121000211212.

It is not a de Polignac number, because 212112000121 - 2¹ = 212112000119 is a prime.

It is a super-3 number, since 3×212112000121³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112000181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21008625 + ... + 21018718.

It is an arithmetic number, because the mean of its divisors is an integer number (20761507936).

Almost surely, 2^212112000121 is an apocalyptic number.

It is an amenable number.

212112000121 is a deficient number, since it is larger than the sum of its proper divisors (37026095111).

212112000121 is a wasteful number, since it uses less digits than its factorization.

212112000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42027460 (or 42027453 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212112000121 its reverse (121000211212), we get a palindrome (333112211333).

The spelling of 212112000121 in words is "two hundred twelve billion, one hundred twelve million, one hundred twenty-one", and thus it is an aban number.