121020110020000 has 60 divisors (see below), whose sum is σ = 297727623714906. Its totient is φ = 48408044000000.

The previous prime is 121020110019959. The next prime is 121020110020013. The reversal of 121020110020000 is 20011020121.

It can be written as a sum of positive squares in 5 ways, for example, as 95162378256 + 120924947641744 = 308484^2 + 10996588^2 .

It is a super-3 number, since 3×121020110020000³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3025482751 + ... + 3025522750.

Almost surely, 2^{121020110020000} is an apocalyptic number.

121020110020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020110020000 is an abundant number, since it is smaller than the sum of its proper divisors (176707513694906).

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

121020110020000 is an frugal number, since it uses more digits than its factorization.

121020110020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051005531 (or 6051005508 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121020110020000 its reverse (20011020121), we get a palindrome (121040121040121).

The spelling of 121020110020000 in words is "one hundred twenty-one trillion, twenty billion, one hundred ten million, twenty thousand".