12201012110020 has 48 divisors (see below), whose sum is σ = 26279989042608. Its totient is φ = 4755396208640.

The previous prime is 12201012109981. The next prime is 12201012110047. The reversal of 12201012110020 is 2001121010221.

It can be written as a sum of positive squares in 8 ways, for example, as 1925256151296 + 10275755958724 = 1387536^2 + 3205582^2 .

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, 8681017 + ... + 9988096.

It is an arithmetic number, because the mean of its divisors is an integer number (547499771721).

Almost surely, 2^{12201012110020} is an apocalyptic number.

12201012110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201012110020 is an abundant number, since it is smaller than the sum of its proper divisors (14078976932588).

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

12201012110020 is a wasteful number, since it uses less digits than its factorization.

12201012110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18669960 (or 18669958 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12201012110020 its reverse (2001121010221), we get a palindrome (14202133120241).

The spelling of 12201012110020 in words is "twelve trillion, two hundred one billion, twelve million, one hundred ten thousand, twenty".