1102111122440 has 32 divisors (see below), whose sum is σ = 2526537766680. Its totient is φ = 432526628352.

The previous prime is 1102111122439. The next prime is 1102111122457. The reversal of 1102111122440 is 442211112011.

It can be written as a sum of positive squares in 4 ways, for example, as 985981477156 + 116129645284 = 992966^2 + 340778^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259929749 + ... + 259933988.

Almost surely, 2^{1102111122440} is an apocalyptic number.

1102111122440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102111122440 is an abundant number, since it is smaller than the sum of its proper divisors (1424426644240).

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

1102111122440 is a wasteful number, since it uses less digits than its factorization.

1102111122440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519863801 (or 519863797 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1102111122440 its reverse (442211112011), we get a palindrome (1544322234451).

The spelling of 1102111122440 in words is "one trillion, one hundred two billion, one hundred eleven million, one hundred twenty-two thousand, four hundred forty".