12020121010 has 8 divisors (see below), whose sum is σ = 21636217836. Its totient is φ = 4808048400.

The previous prime is 12020121007. The next prime is 12020121013. The reversal of 12020121010 is 1012102021.

12020121010 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12020121007) and next prime (12020121013).

It can be written as a sum of positive squares in 2 ways, for example, as 11494198521 + 525922489 = 107211^2 + 22933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1202012101 = 12020121010 / (1 + 2 + 0 + 2 + 0 + 1 + 2 + 1 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (12020121013) 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, 601006041 + ... + 601006060.

Almost surely, 2^12020121010 is an apocalyptic number.

12020121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020121010 is a deficient number, since it is larger than the sum of its proper divisors (9616096826).

12020121010 is a wasteful number, since it uses less digits than its factorization.

12020121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202012108.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12020121010 its reverse (1012102021), we get a palindrome (13032223031).

The spelling of 12020121010 in words is "twelve billion, twenty million, one hundred twenty-one thousand, ten".