1111111122010 has 16 divisors (see below), whose sum is σ = 2005730685000. Its totient is φ = 443170967616.

The previous prime is 1111111122001. The next prime is 1111111122019. The reversal of 1111111122010 is 102211111111.

It is an interprime number because it is at equal distance from previous prime (1111111122001) and next prime (1111111122019).

It can be written as a sum of positive squares in 4 ways, for example, as 811355967009 + 299755155001 = 900753^2 + 547499^2 .

It is a super-2 number, since 2×1111111122010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1111111122019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159181485 + ... + 159188464.

Almost surely, 2^{1111111122010} is an apocalyptic number.

1111111122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111111122010 is a deficient number, since it is larger than the sum of its proper divisors (894619562990).

1111111122010 is a wasteful number, since it uses less digits than its factorization.

1111111122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318370305.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111111122010 its reverse (102211111111), we get a palindrome (1213322233121).

The spelling of 1111111122010 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, ten".