1055220420044 has 48 divisors (see below), whose sum is σ = 2242220527680. Its totient is φ = 424841760000.

The previous prime is 1055220420019. The next prime is 1055220420061. The reversal of 1055220420044 is 4400240225501.

1055220420044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1055220420044² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 1055220419989 and 1055220420016.

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, 17531207 + ... + 17591294.

It is an arithmetic number, because the mean of its divisors is an integer number (46712927660).

Almost surely, 2^{1055220420044} is an apocalyptic number.

1055220420044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1055220420044 is an abundant number, since it is smaller than the sum of its proper divisors (1187000107636).

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

1055220420044 is a wasteful number, since it uses less digits than its factorization.

1055220420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35122578 (or 35122576 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 1055220420044 its reverse (4400240225501), we get a palindrome (5455460645545).

The spelling of 1055220420044 in words is "one trillion, fifty-five billion, two hundred twenty million, four hundred twenty thousand, forty-four".