12201022112020 has 96 divisors (see below), whose sum is σ = 31014328923648. Its totient is φ = 3935945613312.

The previous prime is 12201022111933. The next prime is 12201022112107. The reversal of 12201022112020 is 2021122010221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12201022111933) and next prime (12201022112107).

It is a junction number, because it is equal to n+sod(n) for n = 12201022111985 and 12201022112003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7111249 + ... + 8658631.

It is an arithmetic number, because the mean of its divisors is an integer number (323065926288).

Almost surely, 2^{12201022112020} is an apocalyptic number.

12201022112020 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 12201022112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15507164461824).

12201022112020 is an abundant number, since it is smaller than the sum of its proper divisors (18813306811628).

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

12201022112020 is a wasteful number, since it uses less digits than its factorization.

12201022112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550729 (or 1550727 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12201022112020 its reverse (2021122010221), we get a palindrome (14222144122241).

The spelling of 12201022112020 in words is "twelve trillion, two hundred one billion, twenty-two million, one hundred twelve thousand, twenty".