12121022020211 has 8 divisors (see below), whose sum is σ = 13503525858480. Its totient is φ = 10802820686112.

The previous prime is 12121022020193. The next prime is 12121022020291. The reversal of 12121022020211 is 11202022012121.

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

It is not a de Polignac number, because 12121022020211 - 2²⁶ = 12120954911347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12121022020211.

It is not an unprimeable number, because it can be changed into a prime (12121022020291) 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, 16075625645 + ... + 16075626398.

It is an arithmetic number, because the mean of its divisors is an integer number (1687940732310).

Almost surely, 2^{12121022020211} is an apocalyptic number.

12121022020211 is a deficient number, since it is larger than the sum of its proper divisors (1382503838269).

12121022020211 is a wasteful number, since it uses less digits than its factorization.

12121022020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32151252085.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121022020211 its reverse (11202022012121), we get a palindrome (23323044032332).

The spelling of 12121022020211 in words is "twelve trillion, one hundred twenty-one billion, twenty-two million, twenty thousand, two hundred eleven".