121442764121 has 8 divisors (see below), whose sum is σ = 138807506880. Its totient is φ = 104081965488.

The previous prime is 121442764111. The next prime is 121442764159. The reversal of 121442764121 is 121467244121.

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-121442764121 is a prime.

It is a super-3 number, since 3×121442764121³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121442764111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919751 + ... + 1043468.

It is an arithmetic number, because the mean of its divisors is an integer number (17350938360).

Almost surely, 2^121442764121 is an apocalyptic number.

It is an amenable number.

121442764121 is a deficient number, since it is larger than the sum of its proper divisors (17364742759).

121442764121 is an equidigital number, since it uses as much as digits as its factorization.

121442764121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972063.

The product of its digits is 21504, while the sum is 35.

The spelling of 121442764121 in words is "one hundred twenty-one billion, four hundred forty-two million, seven hundred sixty-four thousand, one hundred twenty-one".