202111302213 has 6 divisors (see below), whose sum is σ = 291938547654. Its totient is φ = 134740868136.

The previous prime is 202111302209. The next prime is 202111302271. The reversal of 202111302213 is 312203111202.

It can be written as a sum of positive squares in only one way, i.e., 163650993444 + 38460308769 = 404538^2 + 196113^2 .

It is not a de Polignac number, because 202111302213 - 2² = 202111302209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111302293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11228405670 + ... + 11228405687.

It is an arithmetic number, because the mean of its divisors is an integer number (48656424609).

Almost surely, 2^202111302213 is an apocalyptic number.

It is an amenable number.

202111302213 is a deficient number, since it is larger than the sum of its proper divisors (89827245441).

202111302213 is a wasteful number, since it uses less digits than its factorization.

202111302213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22456811363 (or 22456811360 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 202111302213 its reverse (312203111202), we get a palindrome (514314413415).

The spelling of 202111302213 in words is "two hundred two billion, one hundred eleven million, three hundred two thousand, two hundred thirteen".