121301223112 has 16 divisors (see below), whose sum is σ = 228126927600. Its totient is φ = 60467375760.

The previous prime is 121301223103. The next prime is 121301223149. The reversal of 121301223112 is 211322103121.

It is a self number, because there is not a number n which added to its sum of digits gives 121301223112.

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 in 3 ways as a sum of consecutive naturals, for example, 22901662 + ... + 22906957.

It is an arithmetic number, because the mean of its divisors is an integer number (14257932975).

Almost surely, 2^121301223112 is an apocalyptic number.

It is an amenable number.

121301223112 is a deficient number, since it is larger than the sum of its proper divisors (106825704488).

121301223112 is a wasteful number, since it uses less digits than its factorization.

121301223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45808956 (or 45808952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121301223112 its reverse (211322103121), we get a palindrome (332623326233).

The spelling of 121301223112 in words is "one hundred twenty-one billion, three hundred one million, two hundred twenty-three thousand, one hundred twelve".