10001120222020 has 24 divisors (see below), whose sum is σ = 21002487975000. Its totient is φ = 4000422277632.

The previous prime is 10001120222011. The next prime is 10001120222063. The reversal of 10001120222020 is 2022202110001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1754252568324 + 8246867653696 = 1324482^2 + 2871736^2 .

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, 1733406 + ... + 4796554.

It is an arithmetic number, because the mean of its divisors is an integer number (875103665625).

Almost surely, 2^{10001120222020} is an apocalyptic number.

10001120222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001120222020 is an abundant number, since it is smaller than the sum of its proper divisors (11001367752980).

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

10001120222020 is a wasteful number, since it uses less digits than its factorization.

10001120222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226407 (or 3226405 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10001120222020 its reverse (2022202110001), we get a palindrome (12023322332021).

It can be divided in two parts, 10001 and 120222020, that added together give a palindrome (120232021).

The spelling of 10001120222020 in words is "ten trillion, one billion, one hundred twenty million, two hundred twenty-two thousand, twenty".