121335310000 has 100 divisors (see below), whose sum is σ = 297485399200. Its totient is φ = 47919456000.

The previous prime is 121335309983. The next prime is 121335310021. The reversal of 121335310000 is 13533121.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×121335310000² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121335310000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 713206 + ... + 866794.

It is an arithmetic number, because the mean of its divisors is an integer number (2974853992).

Almost surely, 2^121335310000 is an apocalyptic number.

121335310000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121335310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148742699600).

121335310000 is an abundant number, since it is smaller than the sum of its proper divisors (176150089200).

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

121335310000 is an equidigital number, since it uses as much as digits as its factorization.

121335310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153696 (or 153675 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 121335310000 its reverse (13533121), we get a palindrome (121348843121).

The spelling of 121335310000 in words is "one hundred twenty-one billion, three hundred thirty-five million, three hundred ten thousand".