12201101222020 has 24 divisors (see below), whose sum is σ = 26042350479768. Its totient is φ = 4800433267200.

The previous prime is 12201101222017. The next prime is 12201101222083. The reversal of 12201101222020 is 2022210110221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 666982276 + 12200434239744 = 25826^2 + 3492912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12201101221985 and 12201101222003.

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, 5000450101 + ... + 5000452540.

It is an arithmetic number, because the mean of its divisors is an integer number (1085097936657).

Almost surely, 2^{12201101222020} is an apocalyptic number.

12201101222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201101222020 is an abundant number, since it is smaller than the sum of its proper divisors (13841249257748).

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

12201101222020 is a wasteful number, since it uses less digits than its factorization.

12201101222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000902711 (or 10000902709 counting only the distinct ones).

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

Adding to 12201101222020 its reverse (2022210110221), we get a palindrome (14223311332241).

The spelling of 12201101222020 in words is "twelve trillion, two hundred one billion, one hundred one million, two hundred twenty-two thousand, twenty".