11111111111202 has 8 divisors (see below), whose sum is σ = 22222222222416. Its totient is φ = 3703703703732.

The previous prime is 11111111111123. The next prime is 11111111111249. The reversal of 11111111111202 is 20211111111111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

11111111111202 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 925925925928 + ... + 925925925939.

It is an arithmetic number, because the mean of its divisors is an integer number (2777777777802).

Almost surely, 2^{11111111111202} is an apocalyptic number.

11111111111202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11111111111202 is a wasteful number, since it uses less digits than its factorization.

11111111111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851851851872.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 11111111111202 its reverse (20211111111111), we get a palindrome (31322222222313).

Subtracting 11111111111202 from its reverse (20211111111111), we obtain a palindrome (9099999999909).

It can be divided in two parts, 11111111111 and 202, that multiplied together give a palindrome (2244444444422).

The spelling of 11111111111202 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, two hundred two".