2021211112213 has 16 divisors (see below), whose sum is σ = 2091273085440. Its totient is φ = 1952494707904.

The previous prime is 2021211112201. The next prime is 2021211112259. The reversal of 2021211112213 is 3122111121202.

It is a cyclic number.

It is not a de Polignac number, because 2021211112213 - 2⁵ = 2021211112181 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 (2021211112273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504828 + ... + 2072986.

It is an arithmetic number, because the mean of its divisors is an integer number (130704567840).

Almost surely, 2^{2021211112213} is an apocalyptic number.

It is an amenable number.

2021211112213 is a deficient number, since it is larger than the sum of its proper divisors (70061973227).

2021211112213 is a wasteful number, since it uses less digits than its factorization.

2021211112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568588.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2021211112213 its reverse (3122111121202), we get a palindrome (5143322233415).

The spelling of 2021211112213 in words is "two trillion, twenty-one billion, two hundred eleven million, one hundred twelve thousand, two hundred thirteen".