1055220243140 has 48 divisors (see below), whose sum is σ = 2543587737600. Its totient is φ = 360209918592.

The previous prime is 1055220243139. The next prime is 1055220243157. The reversal of 1055220243140 is 413420225501.

It is a super-2 number, since 2×1055220243140² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16424900 + ... + 16489019.

It is an arithmetic number, because the mean of its divisors is an integer number (52991411200).

Almost surely, 2^{1055220243140} is an apocalyptic number.

1055220243140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055220243140 is an abundant number, since it is smaller than the sum of its proper divisors (1488367494460).

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

1055220243140 is a wasteful number, since it uses less digits than its factorization.

1055220243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32914164 (or 32914162 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 1055220243140 its reverse (413420225501), we get a palindrome (1468640468641).

The spelling of 1055220243140 in words is "one trillion, fifty-five billion, two hundred twenty million, two hundred forty-three thousand, one hundred forty".