121193280895 has 32 divisors (see below), whose sum is σ = 149436368640. Its totient is φ = 94321140480.

The previous prime is 121193280847. The next prime is 121193280911. The reversal of 121193280895 is 598082391121.

It is not a de Polignac number, because 121193280895 - 2¹⁷ = 121193149823 is a prime.

It is a super-2 number, since 2×121193280895² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48072235 + ... + 48074755.

It is an arithmetic number, because the mean of its divisors is an integer number (4669886520).

Almost surely, 2^121193280895 is an apocalyptic number.

121193280895 is a deficient number, since it is larger than the sum of its proper divisors (28243087745).

121193280895 is a wasteful number, since it uses less digits than its factorization.

121193280895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 121193280895 in words is "one hundred twenty-one billion, one hundred ninety-three million, two hundred eighty thousand, eight hundred ninety-five".