121712100654 has 8 divisors (see below), whose sum is σ = 243424201320. Its totient is φ = 40570700216.

The previous prime is 121712100641. The next prime is 121712100659. The reversal of 121712100654 is 456001217121.

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

121712100654 is an admirable number.

It is a super-3 number, since 3×121712100654³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121712100659) 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 3 ways as a sum of consecutive naturals, for example, 10142675049 + ... + 10142675060.

It is an arithmetic number, because the mean of its divisors is an integer number (30428025165).

Almost surely, 2^121712100654 is an apocalyptic number.

121712100654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121712100654 is a wasteful number, since it uses less digits than its factorization.

121712100654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20285350114.

The product of its (nonzero) digits is 3360, while the sum is 30.

Adding to 121712100654 its reverse (456001217121), we get a palindrome (577713317775).

The spelling of 121712100654 in words is "one hundred twenty-one billion, seven hundred twelve million, one hundred thousand, six hundred fifty-four".