12020121030 has 16 divisors (see below), whose sum is σ = 28848290544. Its totient is φ = 3205365600.

The previous prime is 12020121013. The next prime is 12020121073. The reversal of 12020121030 is 3012102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020120997 and 12020121015.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 200335321 + ... + 200335380.

It is an arithmetic number, because the mean of its divisors is an integer number (1803018159).

Almost surely, 2^12020121030 is an apocalyptic number.

12020121030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020121030 is an abundant number, since it is smaller than the sum of its proper divisors (16828169514).

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

12020121030 is a wasteful number, since it uses less digits than its factorization.

12020121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400670711.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12020121030 its reverse (3012102021), we get a palindrome (15032223051).

The spelling of 12020121030 in words is "twelve billion, twenty million, one hundred twenty-one thousand, thirty".