121670349812 has 12 divisors (see below), whose sum is σ = 232279758816. Its totient is φ = 55304704440.

The previous prime is 121670349763. The next prime is 121670349841. The reversal of 121670349812 is 218943076121.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2765235223 = 121670349812 / (1 + 2 + 1 + 6 + 7 + 0 + 3 + 4 + 9 + 8 + 1 + 2).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 1382617568 + ... + 1382617655.

It is an arithmetic number, because the mean of its divisors is an integer number (19356646568).

Almost surely, 2^121670349812 is an apocalyptic number.

It is an amenable number.

121670349812 is a deficient number, since it is larger than the sum of its proper divisors (110609409004).

121670349812 is a wasteful number, since it uses less digits than its factorization.

121670349812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765235238 (or 2765235236 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 121670349812 in words is "one hundred twenty-one billion, six hundred seventy million, three hundred forty-nine thousand, eight hundred twelve".