211202210202113 has 4 divisors (see below), whose sum is σ = 227448534063828. Its totient is φ = 194955886340400.

The previous prime is 211202210202073. The next prime is 211202210202163. The reversal of 211202210202113 is 311202012202112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50859961034689 + 160342249167424 = 7131617^2 + 12662632^2 .

It is a cyclic number.

It is not a de Polignac number, because 211202210202113 - 2²⁸ = 211201941766657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211202210202163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8123161930838 + ... + 8123161930863.

It is an arithmetic number, because the mean of its divisors is an integer number (56862133515957).

Almost surely, 2^{211202210202113} is an apocalyptic number.

It is an amenable number.

211202210202113 is a deficient number, since it is larger than the sum of its proper divisors (16246323861715).

211202210202113 is a wasteful number, since it uses less digits than its factorization.

211202210202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16246323861714.

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

Adding to 211202210202113 its reverse (311202012202112), we get a palindrome (522404222404225).

The spelling of 211202210202113 in words is "two hundred eleven trillion, two hundred two billion, two hundred ten million, two hundred two thousand, one hundred thirteen".