121120211020000 has 120 divisors (see below), whose sum is σ = 298190978698536. Its totient is φ = 48412787136000.

The previous prime is 121120211019971. The next prime is 121120211020007. The reversal of 121120211020000 is 20112021121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120211020007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25254607 + ... + 29665393.

Almost surely, 2^{121120211020000} is an apocalyptic number.

121120211020000 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 121120211020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149095489349268).

121120211020000 is an abundant number, since it is smaller than the sum of its proper divisors (177070767678536).

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

121120211020000 is an equidigital number, since it uses as much as digits as its factorization.

121120211020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412190 (or 4412167 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121120211020000 its reverse (20112021121), we get a palindrome (121140323041121).

The spelling of 121120211020000 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred eleven million, twenty thousand".