120021110000 has 150 divisors (see below), whose sum is σ = 319404489096. Its totient is φ = 43643600000.

The previous prime is 120021109993. The next prime is 120021110023. The reversal of 120021110000 is 11120021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 120021110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1160405 + ... + 1259595.

Almost surely, 2^120021110000 is an apocalyptic number.

120021110000 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 120021110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159702244548).

120021110000 is an abundant number, since it is smaller than the sum of its proper divisors (199383379096).

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

120021110000 is an equidigital number, since it uses as much as digits as its factorization.

120021110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99241 (or 99209 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120021110000 its reverse (11120021), we get a palindrome (120032230021).

The spelling of 120021110000 in words is "one hundred twenty billion, twenty-one million, one hundred ten thousand".