12021101221210 has 8 divisors (see below), whose sum is σ = 21637982198196. Its totient is φ = 4808440488480.

The previous prime is 12021101221177. The next prime is 12021101221223. The reversal of 12021101221210 is 1212210112021.

It can be written as a sum of positive squares in 2 ways, for example, as 11940611559361 + 80489661849 = 3455519^2 + 283707^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601055061051 + ... + 601055061070.

Almost surely, 2^{12021101221210} is an apocalyptic number.

12021101221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021101221210 is a deficient number, since it is larger than the sum of its proper divisors (9616880976986).

12021101221210 is a wasteful number, since it uses less digits than its factorization.

12021101221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202110122128.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12021101221210 its reverse (1212210112021), we get a palindrome (13233311333231).

The spelling of 12021101221210 in words is "twelve trillion, twenty-one billion, one hundred one million, two hundred twenty-one thousand, two hundred ten".