2724656120121 has 16 divisors (see below), whose sum is σ = 3913067863040. Its totient is φ = 1676393832960.

The previous prime is 2724656120093. The next prime is 2724656120141. The reversal of 2724656120121 is 1210216564272.

It is not a de Polignac number, because 2724656120121 - 2³⁹ = 2174900306233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2724656120121.

It is not an unprimeable number, because it can be changed into a prime (2724656120141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6408601 + ... + 6820518.

It is an arithmetic number, because the mean of its divisors is an integer number (244566741440).

Almost surely, 2^{2724656120121} is an apocalyptic number.

It is an amenable number.

2724656120121 is a deficient number, since it is larger than the sum of its proper divisors (1188411742919).

2724656120121 is a wasteful number, since it uses less digits than its factorization.

2724656120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13234416.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 2724656120121 in words is "two trillion, seven hundred twenty-four billion, six hundred fifty-six million, one hundred twenty thousand, one hundred twenty-one".