1011200220500 has 24 divisors (see below), whose sum is σ = 2208461282664. Its totient is φ = 404480088000.

The previous prime is 1011200220467. The next prime is 1011200220539. The reversal of 1011200220500 is 50220021101.

It can be written as a sum of positive squares in 4 ways, for example, as 2569678864 + 1008630541636 = 50692^2 + 1004306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011199721 + ... + 1011200720.

It is an arithmetic number, because the mean of its divisors is an integer number (92019220111).

Almost surely, 2^{1011200220500} is an apocalyptic number.

1011200220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011200220500 is an abundant number, since it is smaller than the sum of its proper divisors (1197261062164).

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

1011200220500 is a wasteful number, since it uses less digits than its factorization.

1011200220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022400460 (or 2022400448 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 1011200220500 its reverse (50220021101), we get a palindrome (1061420241601).

The spelling of 1011200220500 in words is "one trillion, eleven billion, two hundred million, two hundred twenty thousand, five hundred".