1111011111210 has 384 divisors, whose sum is σ = 3704752461312. Its totient is φ = 207339264000.

The previous prime is 1111011111163. The next prime is 1111011111227. The reversal of 1111011111210 is 121111101111.

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 191 ways as a sum of consecutive naturals, for example, 12176760 + ... + 12267660.

It is an arithmetic number, because the mean of its divisors is an integer number (9647792868).

Almost surely, 2^{1111011111210} is an apocalyptic number.

1111011111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111011111210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852376230656).

1111011111210 is an abundant number, since it is smaller than the sum of its proper divisors (2593741350102).

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

1111011111210 is a wasteful number, since it uses less digits than its factorization.

1111011111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90990 (or 90979 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 1111011111210 its reverse (121111101111), we get a palindrome (1232122212321).

It can be divided in two parts, 1111011 and 111210, that added together give a palindrome (1222221).

The spelling of 1111011111210 in words is "one trillion, one hundred eleven billion, eleven million, one hundred eleven thousand, two hundred ten".