121399454810049 has 32 divisors (see below), whose sum is σ = 177609449606400. Its totient is φ = 73296430142208.

The previous prime is 121399454810027. The next prime is 121399454810077. The reversal of 121399454810049 is 940018454993121.

121399454810049 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 121399454810049 - 2⁵ = 121399454810017 is a prime.

It is a super-4 number, since 4×121399454810049⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121399454809974 and 121399454810001.

It is not an unprimeable number, because it can be changed into a prime (121399454860049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117613132 + ... + 118640834.

It is an arithmetic number, because the mean of its divisors is an integer number (5550295300200).

Almost surely, 2^{121399454810049} is an apocalyptic number.

It is an amenable number.

121399454810049 is a deficient number, since it is larger than the sum of its proper divisors (56209994796351).

121399454810049 is a wasteful number, since it uses less digits than its factorization.

121399454810049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084921.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 121399454810049 in words is "one hundred twenty-one trillion, three hundred ninety-nine billion, four hundred fifty-four million, eight hundred ten thousand, forty-nine".