121222120112 has 10 divisors (see below), whose sum is σ = 234867857748. Its totient is φ = 60611060048.

The previous prime is 121222120049. The next prime is 121222120121. The reversal of 121222120112 is 211021222121.

It is an unprimeable number.

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, 3788191238 + ... + 3788191269.

Almost surely, 2^121222120112 is an apocalyptic number.

It is an amenable number.

121222120112 is a deficient number, since it is larger than the sum of its proper divisors (113645737636).

121222120112 is an equidigital number, since it uses as much as digits as its factorization.

121222120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576382515 (or 7576382509 counting only the distinct ones).

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

Adding to 121222120112 its reverse (211021222121), we get a palindrome (332243342233).

The spelling of 121222120112 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twelve".