121200488995105 has 16 divisors (see below), whose sum is σ = 158966060428224. Its totient is φ = 88166050315200.

The previous prime is 121200488995031. The next prime is 121200488995111. The reversal of 121200488995105 is 501599884002121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-121200488995105 is a prime.

It is a super-2 number, since 2×121200488995105² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13915091971 + ... + 13915100680.

It is an arithmetic number, because the mean of its divisors is an integer number (9935378776764).

Almost surely, 2^{121200488995105} is an apocalyptic number.

It is an amenable number.

121200488995105 is a deficient number, since it is larger than the sum of its proper divisors (37765571433119).

121200488995105 is a wasteful number, since it uses less digits than its factorization.

121200488995105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27830192736.

The product of its (nonzero) digits is 2073600, while the sum is 55.

The spelling of 121200488995105 in words is "one hundred twenty-one trillion, two hundred billion, four hundred eighty-eight million, nine hundred ninety-five thousand, one hundred five".