12201011122020 has 144 divisors (see below), whose sum is σ = 39745709011008. Its totient is φ = 2788432523520.

The previous prime is 12201011121967. The next prime is 12201011122039. The reversal of 12201011122020 is 2022111010221.

12201011122020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22198930 + ... + 22741910.

It is an arithmetic number, because the mean of its divisors is an integer number (276011868132).

Almost surely, 2^{12201011122020} is an apocalyptic number.

12201011122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201011122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19872854505504).

12201011122020 is an abundant number, since it is smaller than the sum of its proper divisors (27544697888988).

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

12201011122020 is a wasteful number, since it uses less digits than its factorization.

12201011122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550650 (or 550641 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12201011122020 its reverse (2022111010221), we get a palindrome (14223122132241).

The spelling of 12201011122020 in words is "twelve trillion, two hundred one billion, eleven million, one hundred twenty-two thousand, twenty".