120121110330 has 128 divisors (see below), whose sum is σ = 317154700800. Its totient is φ = 28936258560.

The previous prime is 120121110323. The next prime is 120121110353. The reversal of 120121110330 is 33011121021.

It is a happy number.

It is a super-2 number, since 2×120121110330² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4721524 + ... + 4746896.

It is an arithmetic number, because the mean of its divisors is an integer number (2477771100).

Almost surely, 2^120121110330 is an apocalyptic number.

120121110330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120121110330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158577350400).

120121110330 is an abundant number, since it is smaller than the sum of its proper divisors (197033590470).

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

120121110330 is a wasteful number, since it uses less digits than its factorization.

120121110330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25656.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 120121110330 its reverse (33011121021), we get a palindrome (153132231351).

The spelling of 120121110330 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred ten thousand, three hundred thirty".