12210212121011 has 8 divisors (see below), whose sum is σ = 12262801266144. Its totient is φ = 12157624555840.

The previous prime is 12210212121007. The next prime is 12210212121043. The reversal of 12210212121011 is 11012121201221.

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

It is a cyclic number.

It is not a de Polignac number, because 12210212121011 - 2² = 12210212121007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210212141011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16680281 + ... + 17396901.

It is an arithmetic number, because the mean of its divisors is an integer number (1532850158268).

Almost surely, 2^{12210212121011} is an apocalyptic number.

12210212121011 is a deficient number, since it is larger than the sum of its proper divisors (52589145133).

12210212121011 is an equidigital number, since it uses as much as digits as its factorization.

12210212121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789981.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12210212121011 its reverse (11012121201221), we get a palindrome (23222333322232).

The spelling of 12210212121011 in words is "twelve trillion, two hundred ten billion, two hundred twelve million, one hundred twenty-one thousand, eleven".