121282841579 has 8 divisors (see below), whose sum is σ = 126575321760. Its totient is φ = 116064382336.

The previous prime is 121282841551. The next prime is 121282841611. The reversal of 121282841579 is 975148282121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121282841579 is a prime.

It is a super-2 number, since 2×121282841579² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121282841279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18501887 + ... + 18508440.

It is an arithmetic number, because the mean of its divisors is an integer number (15821915220).

Almost surely, 2^121282841579 is an apocalyptic number.

121282841579 is a deficient number, since it is larger than the sum of its proper divisors (5292480181).

121282841579 is a wasteful number, since it uses less digits than its factorization.

121282841579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37010469.

The product of its digits is 645120, while the sum is 50.

The spelling of 121282841579 in words is "one hundred twenty-one billion, two hundred eighty-two million, eight hundred forty-one thousand, five hundred seventy-nine".