121210221002212 has 12 divisors (see below), whose sum is σ = 212872754680236. Its totient is φ = 60389433950720.

The previous prime is 121210221002173. The next prime is 121210221002257. The reversal of 121210221002212 is 212200122012121.

It can be written as a sum of positive squares in 2 ways, for example, as 78484963962276 + 42725257039936 = 8859174^2 + 6536456^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121210221002212.

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, 53919136333 + ... + 53919138580.

It is an arithmetic number, because the mean of its divisors is an integer number (17739396223353).

Almost surely, 2^{121210221002212} is an apocalyptic number.

It is an amenable number.

121210221002212 is a deficient number, since it is larger than the sum of its proper divisors (91662533678024).

121210221002212 is a wasteful number, since it uses less digits than its factorization.

121210221002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107838275198 (or 107838275196 counting only the distinct ones).

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

Adding to 121210221002212 its reverse (212200122012121), we get a palindrome (333410343014333).

The spelling of 121210221002212 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-one million, two thousand, two hundred twelve".