121490218663 has 8 divisors (see below), whose sum is σ = 132543574416. Its totient is φ = 110438328000.

The previous prime is 121490218601. The next prime is 121490218709. The reversal of 121490218663 is 366812094121.

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

It is not a de Polignac number, because 121490218663 - 2¹⁷ = 121490087591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121490218063) by changing a digit.

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, 189156 + ... + 527977.

It is an arithmetic number, because the mean of its divisors is an integer number (16567946802).

Almost surely, 2^121490218663 is an apocalyptic number.

121490218663 is a deficient number, since it is larger than the sum of its proper divisors (11053355753).

121490218663 is a wasteful number, since it uses less digits than its factorization.

121490218663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732545.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 121490218663 in words is "one hundred twenty-one billion, four hundred ninety million, two hundred eighteen thousand, six hundred sixty-three".