121212122000212 has 12 divisors (see below), whose sum is σ = 212128404012756. Its totient is φ = 60604006568000.

The previous prime is 121212122000209. The next prime is 121212122000257. The reversal of 121212122000212 is 212000221212121.

It can be written as a sum of positive squares in 2 ways, for example, as 78590600837956 + 42621521162256 = 8865134^2 + 6528516^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121212122000212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513475273 + ... + 513711280.

It is an arithmetic number, because the mean of its divisors is an integer number (17677367001063).

Almost surely, 2^{121212122000212} is an apocalyptic number.

It is an amenable number.

121212122000212 is a deficient number, since it is larger than the sum of its proper divisors (90916282012544).

121212122000212 is a wasteful number, since it uses less digits than its factorization.

121212122000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027216058 (or 1027216056 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121212122000212 its reverse (212000221212121), we get a palindrome (333212343212333).

The spelling of 121212122000212 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twelve", and thus it is an aban number.