1123331112210 has 256 divisors, whose sum is σ = 2881717171200. Its totient is φ = 279838310400.

The previous prime is 1123331112161. The next prime is 1123331112229. The reversal of 1123331112210 is 122111333211.

It is a super-2 number, since 2×1123331112210² (a number of 25 digits) contains 22 as substring.

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 127 ways as a sum of consecutive naturals, for example, 1089554395 + ... + 1089555425.

It is an arithmetic number, because the mean of its divisors is an integer number (11256707700).

Almost surely, 2^{1123331112210} is an apocalyptic number.

1123331112210 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 1123331112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440858585600).

1123331112210 is an abundant number, since it is smaller than the sum of its proper divisors (1758386058990).

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

1123331112210 is a wasteful number, since it uses less digits than its factorization.

1123331112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1123331112210 its reverse (122111333211), we get a palindrome (1245442445421).

The spelling of 1123331112210 in words is "one trillion, one hundred twenty-three billion, three hundred thirty-one million, one hundred twelve thousand, two hundred ten".