202111110216 has 48 divisors (see below), whose sum is σ = 548684539260. Its totient is φ = 67210335360.

The previous prime is 202111110203. The next prime is 202111110217. The reversal of 202111110216 is 612011111202.

It can be written as a sum of positive squares in 2 ways, for example, as 202008898116 + 102212100 = 449454^2 + 10110^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202111110217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3303535 + ... + 3364158.

Almost surely, 2^202111110216 is an apocalyptic number.

It is an amenable number.

202111110216 is an abundant number, since it is smaller than the sum of its proper divisors (346573429044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202111110216 is a wasteful number, since it uses less digits than its factorization.

202111110216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668126 (or 6668119 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 202111110216 its reverse (612011111202), we get a palindrome (814122221418).

The spelling of 202111110216 in words is "two hundred two billion, one hundred eleven million, one hundred ten thousand, two hundred sixteen".