121065542912769 has 16 divisors (see below), whose sum is σ = 198671660164992. Its totient is φ = 63858747909888.

The previous prime is 121065542912737. The next prime is 121065542912843. The reversal of 121065542912769 is 967219245560121.

It is not a de Polignac number, because 121065542912769 - 2⁵ = 121065542912737 is a prime.

It is a super-2 number, since 2×121065542912769² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121065542914769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221731763304 + ... + 221731763849.

It is an arithmetic number, because the mean of its divisors is an integer number (12416978760312).

Almost surely, 2^{121065542912769} is an apocalyptic number.

It is an amenable number.

121065542912769 is a deficient number, since it is larger than the sum of its proper divisors (77606117252223).

121065542912769 is a wasteful number, since it uses less digits than its factorization.

121065542912769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443463527176.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 121065542912769 in words is "one hundred twenty-one trillion, sixty-five billion, five hundred forty-two million, nine hundred twelve thousand, seven hundred sixty-nine".