1122122221110 has 96 divisors (see below), whose sum is σ = 3183122292480. Its totient is φ = 271997524800.

The previous prime is 1122122221063. The next prime is 1122122221117. The reversal of 1122122221110 is 111222212211.

1122122221110 is a `hidden beast` number, since 1 + 1 + 221 + 222 + 211 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122122221117) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 8937751 + ... + 9062429.

It is an arithmetic number, because the mean of its divisors is an integer number (33157523880).

Almost surely, 2^{1122122221110} is an apocalyptic number.

1122122221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122122221110 is an abundant number, since it is smaller than the sum of its proper divisors (2061000071370).

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

1122122221110 is a wasteful number, since it uses less digits than its factorization.

1122122221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133794 (or 133791 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1122122221110 its reverse (111222212211), we get a palindrome (1233344433321).

The spelling of 1122122221110 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".