1111111212010 has 16 divisors (see below), whose sum is σ = 2007782288136. Its totient is φ = 442715127808.

The previous prime is 1111111211999. The next prime is 1111111212097. The reversal of 1111111212010 is 102121111111.

It can be written as a sum of positive squares in 4 ways, for example, as 1042230684609 + 68880527401 = 1020897^2 + 262451^2 .

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, 216166927 + ... + 216172066.

Almost surely, 2^{1111111212010} is an apocalyptic number.

1111111212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111111212010 is a deficient number, since it is larger than the sum of its proper divisors (896671076126).

1111111212010 is a wasteful number, since it uses less digits than its factorization.

1111111212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432339257.

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

Adding to 1111111212010 its reverse (102121111111), we get a palindrome (1213232323121).

The spelling of 1111111212010 in words is "one trillion, one hundred eleven billion, one hundred eleven million, two hundred twelve thousand, ten".