121012521344189 has 8 divisors (see below), whose sum is σ = 124475073710592. Its totient is φ = 117579437508960.

The previous prime is 121012521344173. The next prime is 121012521344191. The reversal of 121012521344189 is 981443125210121.

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

It is a cyclic number.

It is not a de Polignac number, because 121012521344189 - 2⁴ = 121012521344173 is a prime.

It is a super-3 number, since 3×121012521344189³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012521344089) 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, 7367124464 + ... + 7367140889.

It is an arithmetic number, because the mean of its divisors is an integer number (15559384213824).

Almost surely, 2^{121012521344189} is an apocalyptic number.

It is an amenable number.

121012521344189 is a deficient number, since it is larger than the sum of its proper divisors (3462552366403).

121012521344189 is a wasteful number, since it uses less digits than its factorization.

121012521344189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14734265587.

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 121012521344189 in words is "one hundred twenty-one trillion, twelve billion, five hundred twenty-one million, three hundred forty-four thousand, one hundred eighty-nine".