211111202020202 has 32 divisors (see below), whose sum is σ = 347575293000000. Its totient is φ = 95372337827200.

The previous prime is 211111202020189. The next prime is 211111202020207. The reversal of 211111202020202 is 202020202111112.

It is a super-2 number, since 2×211111202020202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211111202020207) 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 15 ways as a sum of consecutive naturals, for example, 41488952 + ... + 46298547.

It is an arithmetic number, because the mean of its divisors is an integer number (10861727906250).

Almost surely, 2^{211111202020202} is an apocalyptic number.

211111202020202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211111202020202 is a deficient number, since it is larger than the sum of its proper divisors (136464090979798).

211111202020202 is a wasteful number, since it uses less digits than its factorization.

211111202020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87788182.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211111202020202 its reverse (202020202111112), we get a palindrome (413131404131314).

The spelling of 211111202020202 in words is "two hundred eleven trillion, one hundred eleven billion, two hundred two million, twenty thousand, two hundred two".