12201012021020 has 24 divisors (see below), whose sum is σ = 25675616131200. Its totient is φ = 4870216068032.

The previous prime is 12201012021001. The next prime is 12201012021059. The reversal of 12201012021020 is 2012021010221.

12201012021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12201012020986 and 12201012021004.

It is a congruent number.

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, 636786455 + ... + 636805614.

It is an arithmetic number, because the mean of its divisors is an integer number (1069817338800).

Almost surely, 2^{12201012021020} is an apocalyptic number.

12201012021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201012021020 is an abundant number, since it is smaller than the sum of its proper divisors (13474604110180).

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

12201012021020 is a wasteful number, since it uses less digits than its factorization.

12201012021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273592557 (or 1273592555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12201012021020 its reverse (2012021010221), we get a palindrome (14213033031241).

The spelling of 12201012021020 in words is "twelve trillion, two hundred one billion, twelve million, twenty-one thousand, twenty".