120020200121020 has 192 divisors, whose sum is σ = 269710952636160. Its totient is φ = 44828670458880.

The previous prime is 120020200121009. The next prime is 120020200121027. The reversal of 120020200121020 is 20121002020021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020200121027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3013972710 + ... + 3014012530.

It is an arithmetic number, because the mean of its divisors is an integer number (1404744544980).

Almost surely, 2^{120020200121020} is an apocalyptic number.

120020200121020 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 120020200121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134855476318080).

120020200121020 is an abundant number, since it is smaller than the sum of its proper divisors (149690752515140).

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

120020200121020 is a wasteful number, since it uses less digits than its factorization.

120020200121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40121 (or 40061 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120020200121020 its reverse (20121002020021), we get a palindrome (140141202141041).

The spelling of 120020200121020 in words is "one hundred twenty trillion, twenty billion, two hundred million, one hundred twenty-one thousand, twenty".