12021431210 has 8 divisors (see below), whose sum is σ = 21638576196. Its totient is φ = 4808572480.

The previous prime is 12021431197. The next prime is 12021431231. The reversal of 12021431210 is 1213412021.

12021431210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12011502409 + 9928801 = 109597^2 + 3151^2 .

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

It is a super-4 number, since 4×12021431210⁴ (a number of 41 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601071551 + ... + 601071570.

Almost surely, 2^12021431210 is an apocalyptic number.

12021431210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021431210 is a deficient number, since it is larger than the sum of its proper divisors (9617144986).

12021431210 is a wasteful number, since it uses less digits than its factorization.

12021431210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202143128.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12021431210 its reverse (1213412021), we get a palindrome (13234843231).

The spelling of 12021431210 in words is "twelve billion, twenty-one million, four hundred thirty-one thousand, two hundred ten".