121120122212 has 6 divisors (see below), whose sum is σ = 211960213878. Its totient is φ = 60560061104.

The previous prime is 121120122203. The next prime is 121120122217. The reversal of 121120122212 is 212221021121.

It can be written as a sum of positive squares in only one way, i.e., 76267659556 + 44852462656 = 276166^2 + 211784^2 .

It is not an unprimeable number, because it can be changed into a prime (121120122217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15140015273 + ... + 15140015280.

It is an arithmetic number, because the mean of its divisors is an integer number (35326702313).

Almost surely, 2^121120122212 is an apocalyptic number.

It is an amenable number.

121120122212 is a deficient number, since it is larger than the sum of its proper divisors (90840091666).

121120122212 is a wasteful number, since it uses less digits than its factorization.

121120122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30280030557 (or 30280030555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121120122212 its reverse (212221021121), we get a palindrome (333341143333).

The spelling of 121120122212 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twelve".