1112222221210 has 32 divisors (see below), whose sum is σ = 2024817814800. Its totient is φ = 439819860480.

The previous prime is 1112222221207. The next prime is 1112222221259. The reversal of 1112222221210 is 121222222111.

It can be written as a sum of positive squares in 8 ways, for example, as 214395854841 + 897826366369 = 463029^2 + 947537^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5660820 + ... + 5854000.

Almost surely, 2^{1112222221210} is an apocalyptic number.

1112222221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1112222221210 is a deficient number, since it is larger than the sum of its proper divisors (912595593590).

1112222221210 is a wasteful number, since it uses less digits than its factorization.

1112222221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199746.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1112222221210 its reverse (121222222111), we get a palindrome (1233444443321).

Subtracting from 1112222221210 its reverse (121222222111), we obtain a palindrome (990999999099).

The spelling of 1112222221210 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred ten".