121112202212 has 6 divisors (see below), whose sum is σ = 211946353878. Its totient is φ = 60556101104.

The previous prime is 121112202193. The next prime is 121112202221. The reversal of 121112202212 is 212202211121.

It can be written as a sum of positive squares in only one way, i.e., 68605229476 + 52506972736 = 261926^2 + 229144^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15139025273 + ... + 15139025280.

It is an arithmetic number, because the mean of its divisors is an integer number (35324392313).

Almost surely, 2^121112202212 is an apocalyptic number.

It is an amenable number.

121112202212 is a deficient number, since it is larger than the sum of its proper divisors (90834151666).

121112202212 is a wasteful number, since it uses less digits than its factorization.

121112202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30278050557 (or 30278050555 counting only the distinct ones).

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

Adding to 121112202212 its reverse (212202211121), we get a palindrome (333314413333).

The spelling of 121112202212 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred two thousand, two hundred twelve".