12121021001210 has 32 divisors (see below), whose sum is σ = 23844008921472. Its totient is φ = 4399730793280.

The previous prime is 12121021001207. The next prime is 12121021001281. The reversal of 12121021001210 is 1210012012121.

12121021001210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121021001210² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98853542 + ... + 98976081.

It is an arithmetic number, because the mean of its divisors is an integer number (745125278796).

Almost surely, 2^{12121021001210} is an apocalyptic number.

12121021001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121021001210 is a deficient number, since it is larger than the sum of its proper divisors (11722987920262).

12121021001210 is a wasteful number, since it uses less digits than its factorization.

12121021001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197830198.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121021001210 its reverse (1210012012121), we get a palindrome (13331033013331).

The spelling of 12121021001210 in words is "twelve trillion, one hundred twenty-one billion, twenty-one million, one thousand, two hundred ten".