1121122112210 has 8 divisors (see below), whose sum is σ = 2018019801996. Its totient is φ = 448448844880.

The previous prime is 1121122112207. The next prime is 1121122112213. The reversal of 1121122112210 is 122112211211.

It is an interprime number because it is at equal distance from previous prime (1121122112207) and next prime (1121122112213).

It can be written as a sum of positive squares in 2 ways, for example, as 994840671889 + 126281440321 = 997417^2 + 355361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1121122112210³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121122112213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56056105601 + ... + 56056105620.

Almost surely, 2^{1121122112210} is an apocalyptic number.

1121122112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121122112210 is a deficient number, since it is larger than the sum of its proper divisors (896897689786).

1121122112210 is a wasteful number, since it uses less digits than its factorization.

1121122112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112112211228.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121122112210 its reverse (122112211211), we get a palindrome (1243234323421).

Subtracting from 1121122112210 its reverse (122112211211), we obtain a palindrome (999009900999).

The spelling of 1121122112210 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred ten".