11111020200212 has 12 divisors (see below), whose sum is σ = 19490471304276. Its totient is φ = 5542314113280.

The previous prime is 11111020200209. The next prime is 11111020200223. The reversal of 11111020200212 is 21200202011111.

It can be written as a sum of positive squares in 2 ways, for example, as 204553580176 + 10906466620036 = 452276^2 + 3302494^2 .

It is a super-2 number, since 2×11111020200212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3298994813 + ... + 3298998180.

It is an arithmetic number, because the mean of its divisors is an integer number (1624205942023).

Almost surely, 2^{11111020200212} is an apocalyptic number.

It is an amenable number.

11111020200212 is a deficient number, since it is larger than the sum of its proper divisors (8379451104064).

11111020200212 is a wasteful number, since it uses less digits than its factorization.

11111020200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597993418 (or 6597993416 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11111020200212 its reverse (21200202011111), we get a palindrome (32311222211323).

The spelling of 11111020200212 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred thousand, two hundred twelve".