212112002212121 has 16 divisors (see below), whose sum is σ = 250704199614528. Its totient is φ = 177265595673600.

The previous prime is 212112002212111. The next prime is 212112002212169. The reversal of 212112002212121 is 121212200211212.

It is not a de Polignac number, because 212112002212121 - 2³⁴ = 212094822342937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212112002212093 and 212112002212102.

It is not an unprimeable number, because it can be changed into a prime (212112002212111) 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, 13189396400 + ... + 13189412481.

It is an arithmetic number, because the mean of its divisors is an integer number (15669012475908).

Almost surely, 2^{212112002212121} is an apocalyptic number.

It is an amenable number.

212112002212121 is a deficient number, since it is larger than the sum of its proper divisors (38592197402407).

212112002212121 is a wasteful number, since it uses less digits than its factorization.

212112002212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26378808952.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212112002212121 its reverse (121212200211212), we get a palindrome (333324202423333).

The spelling of 212112002212121 in words is "two hundred twelve trillion, one hundred twelve billion, two million, two hundred twelve thousand, one hundred twenty-one".