211100020202 has 4 divisors (see below), whose sum is σ = 316650030306. Its totient is φ = 105550010100.

The previous prime is 211100020169. The next prime is 211100020207. The reversal of 211100020202 is 202020001112.

It is a happy number.

211100020202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 125940524161 + 85159496041 = 354881^2 + 291821^2 .

It is not an unprimeable number, because it can be changed into a prime (211100020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775005049 + ... + 52775005052.

Almost surely, 2^211100020202 is an apocalyptic number.

211100020202 is a deficient number, since it is larger than the sum of its proper divisors (105550010104).

211100020202 is a wasteful number, since it uses less digits than its factorization.

211100020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105550010103.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 211100020202 its reverse (202020001112), we get a palindrome (413120021314).

The spelling of 211100020202 in words is "two hundred eleven billion, one hundred million, twenty thousand, two hundred two".