1013201222020 has 24 divisors (see below), whose sum is σ = 2291393533464. Its totient is φ = 374105066496.

The previous prime is 1013201222009. The next prime is 1013201222027. The reversal of 1013201222020 is 202221023101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4012208964 + 1009189013056 = 63342^2 + 1004584^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1013201221985 and 1013201222003.

It is not an unprimeable number, because it can be changed into a prime (1013201222027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948463629 + ... + 1948464148.

It is an arithmetic number, because the mean of its divisors is an integer number (95474730561).

Almost surely, 2^{1013201222020} is an apocalyptic number.

1013201222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013201222020 is an abundant number, since it is smaller than the sum of its proper divisors (1278192311444).

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

1013201222020 is a wasteful number, since it uses less digits than its factorization.

1013201222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896927799 (or 3896927797 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1013201222020 its reverse (202221023101), we get a palindrome (1215422245121).

The spelling of 1013201222020 in words is "one trillion, thirteen billion, two hundred one million, two hundred twenty-two thousand, twenty".