20212111220213 has 8 divisors (see below), whose sum is σ = 22518715789440. Its totient is φ = 17983696636480.

The previous prime is 20212111220179. The next prime is 20212111220299. The reversal of 20212111220213 is 31202211121202.

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 20212111220213 - 2²⁶ = 20212044111349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212111280213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19547495828 + ... + 19547496861.

It is an arithmetic number, because the mean of its divisors is an integer number (2814839473680).

Almost surely, 2^{20212111220213} is an apocalyptic number.

It is an amenable number.

20212111220213 is a deficient number, since it is larger than the sum of its proper divisors (2306604569227).

20212111220213 is a wasteful number, since it uses less digits than its factorization.

20212111220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39094992747.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20212111220213 its reverse (31202211121202), we get a palindrome (51414322341415).

The spelling of 20212111220213 in words is "twenty trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty thousand, two hundred thirteen".