1055020221203 has 16 divisors (see below), whose sum is σ = 1160407086720. Its totient is φ = 953097048576.

The previous prime is 1055020221179. The next prime is 1055020221251. The reversal of 1055020221203 is 3021220205501.

It is not a de Polignac number, because 1055020221203 - 2⁶ = 1055020221139 is a prime.

It is a super-2 number, since 2×1055020221203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055020221293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19873151 + ... + 19926167.

It is an arithmetic number, because the mean of its divisors is an integer number (72525442920).

Almost surely, 2^{1055020221203} is an apocalyptic number.

1055020221203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1055020221203 is a deficient number, since it is larger than the sum of its proper divisors (105386865517).

1055020221203 is a wasteful number, since it uses less digits than its factorization.

1055020221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85646.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 1055020221203 its reverse (3021220205501), we get a palindrome (4076240426704).

The spelling of 1055020221203 in words is "one trillion, fifty-five billion, twenty million, two hundred twenty-one thousand, two hundred three".