12001212020210 has 48 divisors (see below), whose sum is σ = 25131240524376. Its totient is φ = 4114345600512.

The previous prime is 12001212020197. The next prime is 12001212020269. The reversal of 12001212020210 is 1202021210021.

It can be written as a sum of positive squares in 4 ways, for example, as 6626006254609 + 5375205765601 = 2574103^2 + 2318449^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4647464 + ... + 6752876.

Almost surely, 2^{12001212020210} is an apocalyptic number.

12001212020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001212020210 is an abundant number, since it is smaller than the sum of its proper divisors (13130028504166).

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

12001212020210 is a wasteful number, since it uses less digits than its factorization.

12001212020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117067 (or 2117060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12001212020210 its reverse (1202021210021), we get a palindrome (13203233230231).

The spelling of 12001212020210 in words is "twelve trillion, one billion, two hundred twelve million, twenty thousand, two hundred ten".