212000002111121 has 12 divisors (see below), whose sum is σ = 246616246339632. Its totient is φ = 181711340902728.

The previous prime is 212000002111099. The next prime is 212000002111127. The reversal of 212000002111121 is 121111200000212.

It is not a de Polignac number, because 212000002111121 - 2¹⁴ = 212000002094737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212000002111096 and 212000002111105.

It is not an unprimeable number, because it can be changed into a prime (212000002111127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32023535 + ... + 38072388.

It is an arithmetic number, because the mean of its divisors is an integer number (20551353861636).

Almost surely, 2^{212000002111121} is an apocalyptic number.

It is an amenable number.

212000002111121 is a deficient number, since it is larger than the sum of its proper divisors (34616244228511).

212000002111121 is an equidigital number, since it uses as much as digits as its factorization.

212000002111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70157660 (or 70157653 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212000002111121 its reverse (121111200000212), we get a palindrome (333111202111333).

The spelling of 212000002111121 in words is "two hundred twelve trillion, two million, one hundred eleven thousand, one hundred twenty-one".