121084137735616 has 28 divisors (see below), whose sum is σ = 262119639076920. Its totient is φ = 55038244424960.

The previous prime is 121084137735577. The next prime is 121084137735661. The reversal of 121084137735616 is 616537731480121.

It is a happy number.

It is a super-2 number, since 2×121084137735616² (a number of 29 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 3 ways as a sum of consecutive naturals, for example, 85997256211 + ... + 85997257618.

Almost surely, 2^{121084137735616} is an apocalyptic number.

121084137735616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121084137735616 is an abundant number, since it is smaller than the sum of its proper divisors (141035501341304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121084137735616 is a wasteful number, since it uses less digits than its factorization.

121084137735616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171994513852 (or 171994513842 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 121084137735616 in words is "one hundred twenty-one trillion, eighty-four billion, one hundred thirty-seven million, seven hundred thirty-five thousand, six hundred sixteen".