212121201212122 has 16 divisors (see below), whose sum is σ = 326008812330432. Its totient is φ = 103452652320480.

The previous prime is 212121201212101. The next prime is 212121201212143. The reversal of 212121201212122 is 221212102121212.

212121201212122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212121201212101) and next prime (212121201212143).

It is a junction number, because it is equal to n+sod(n) for n = 212121201212093 and 212121201212102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263400108 + ... + 264204199.

It is an arithmetic number, because the mean of its divisors is an integer number (20375550770652).

Almost surely, 2^{212121201212122} is an apocalyptic number.

212121201212122 is a deficient number, since it is larger than the sum of its proper divisors (113887611118310).

212121201212122 is a wasteful number, since it uses less digits than its factorization.

212121201212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527609253.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212121201212122 its reverse (221212102121212), we get a palindrome (433333303333334).

The spelling of 212121201212122 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred one million, two hundred twelve thousand, one hundred twenty-two".