1105221236420 has 96 divisors (see below), whose sum is σ = 2669515591680. Its totient is φ = 376511247360.

The previous prime is 1105221236389. The next prime is 1105221236503. The reversal of 1105221236420 is 246321225011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23427416 + ... + 23474544.

It is an arithmetic number, because the mean of its divisors is an integer number (27807454080).

Almost surely, 2^{1105221236420} is an apocalyptic number.

1105221236420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105221236420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334757795840).

1105221236420 is an abundant number, since it is smaller than the sum of its proper divisors (1564294355260).

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

1105221236420 is a wasteful number, since it uses less digits than its factorization.

1105221236420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48213 (or 48211 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 1105221236420 in words is "one trillion, one hundred five billion, two hundred twenty-one million, two hundred thirty-six thousand, four hundred twenty".