12001001021210 has 8 divisors (see below), whose sum is σ = 21601801838196. Its totient is φ = 4800400408480.

The previous prime is 12001001021179. The next prime is 12001001021227. The reversal of 12001001021210 is 1212010010021.

It can be written as a sum of positive squares in 2 ways, for example, as 11991544820161 + 9456201049 = 3462881^2 + 97243^2 .

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

It is a super-2 number, since 2×12001001021210² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001001021191 and 12001001021200.

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, 600050051051 + ... + 600050051070.

Almost surely, 2^{12001001021210} is an apocalyptic number.

12001001021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001001021210 is a deficient number, since it is larger than the sum of its proper divisors (9600800816986).

12001001021210 is a wasteful number, since it uses less digits than its factorization.

12001001021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200100102128.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001001021210 its reverse (1212010010021), we get a palindrome (13213011031231).

The spelling of 12001001021210 in words is "twelve trillion, one billion, one million, twenty-one thousand, two hundred ten".