20112212020213 has 4 divisors (see below), whose sum is σ = 20307476214688. Its totient is φ = 19916947825740.

The previous prime is 20112212020183. The next prime is 20112212020249. The reversal of 20112212020213 is 31202021221102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20112212020213 - 2⁹ = 20112212019701 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 (20112212023213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97632097083 + ... + 97632097288.

It is an arithmetic number, because the mean of its divisors is an integer number (5076869053672).

Almost surely, 2^{20112212020213} is an apocalyptic number.

It is an amenable number.

20112212020213 is a deficient number, since it is larger than the sum of its proper divisors (195264194475).

20112212020213 is a wasteful number, since it uses less digits than its factorization.

20112212020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195264194474.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20112212020213 its reverse (31202021221102), we get a palindrome (51314233241315).

The spelling of 20112212020213 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, twenty thousand, two hundred thirteen".