120012221020 has 12 divisors (see below), whose sum is σ = 252025664184. Its totient is φ = 48004888400.

The previous prime is 120012221011. The next prime is 120012221029. The reversal of 120012221020 is 20122210021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120012221011) and next prime (120012221029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012221029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000305506 + ... + 3000305545.

It is an arithmetic number, because the mean of its divisors is an integer number (21002138682).

Almost surely, 2^120012221020 is an apocalyptic number.

120012221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120012221020 is an abundant number, since it is smaller than the sum of its proper divisors (132013443164).

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

120012221020 is a wasteful number, since it uses less digits than its factorization.

120012221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000611060 (or 6000611058 counting only the distinct ones).

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

Adding to 120012221020 its reverse (20122210021), we get a palindrome (140134431041).

The spelling of 120012221020 in words is "one hundred twenty billion, twelve million, two hundred twenty-one thousand, twenty".