121242084536 has 32 divisors (see below), whose sum is σ = 239369768400. Its totient is φ = 57412177920.

The previous prime is 121242084463. The next prime is 121242084547. The reversal of 121242084536 is 635480242121.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 121242084536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358136 + ... + 608888.

Almost surely, 2^121242084536 is an apocalyptic number.

It is an amenable number.

121242084536 is a deficient number, since it is larger than the sum of its proper divisors (118127683864).

121242084536 is a wasteful number, since it uses less digits than its factorization.

121242084536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253959 (or 253955 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 121242084536 in words is "one hundred twenty-one billion, two hundred forty-two million, eighty-four thousand, five hundred thirty-six".