120121121210212 has 12 divisors (see below), whose sum is σ = 210438239801580. Its totient is φ = 59995909838336.

The previous prime is 120121121210201. The next prime is 120121121210243. The reversal of 120121121210212 is 212012121121021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1630407211876 + 118490713998336 = 1276874^2 + 10885344^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120121121210212.

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, 16162687513 + ... + 16162694944.

It is an arithmetic number, because the mean of its divisors is an integer number (17536519983465).

Almost surely, 2^{120121121210212} is an apocalyptic number.

It is an amenable number.

120121121210212 is a deficient number, since it is larger than the sum of its proper divisors (90317118591368).

120121121210212 is a wasteful number, since it uses less digits than its factorization.

120121121210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32325383390 (or 32325383388 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120121121210212 its reverse (212012121121021), we get a palindrome (332133242331233).

The spelling of 120121121210212 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred ten thousand, two hundred twelve".