11111111010010 has 16 divisors (see below), whose sum is σ = 21818181619872. Its totient is φ = 4040404003600.

The previous prime is 11111111009963. The next prime is 11111111010059. The reversal of 11111111010010 is 1001011111111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50505049936 + ... + 50505050155.

It is an arithmetic number, because the mean of its divisors is an integer number (1363636351242).

Almost surely, 2^{11111111010010} is an apocalyptic number.

11111111010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111111010010 is a deficient number, since it is larger than the sum of its proper divisors (10707070609862).

11111111010010 is a wasteful number, since it uses less digits than its factorization.

11111111010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101010100109.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11111111010010 its reverse (1001011111111), we get a palindrome (12112122121121).

The spelling of 11111111010010 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, ten thousand, ten".