12220121020211 has 8 divisors (see below), whose sum is σ = 13160157632160. Its totient is φ = 11280088308672.

The previous prime is 12220121020207. The next prime is 12220121020223. The reversal of 12220121020211 is 11202012102221.

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 12220121020211 - 2² = 12220121020207 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 12220121020211.

It is not an unprimeable number, because it can be changed into a prime (12220121050211) 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, 10785551 + ... + 11864583.

It is an arithmetic number, because the mean of its divisors is an integer number (1645019704020).

Almost surely, 2^{12220121020211} is an apocalyptic number.

12220121020211 is a deficient number, since it is larger than the sum of its proper divisors (940036611949).

12220121020211 is a wasteful number, since it uses less digits than its factorization.

12220121020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950205.

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

Adding to 12220121020211 its reverse (11202012102221), we get a palindrome (23422133122432).

The spelling of 12220121020211 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, twenty thousand, two hundred eleven".