12021200010020 has 48 divisors (see below), whose sum is σ = 25597409927040. Its totient is φ = 4741299300096.

The previous prime is 12021200010007. The next prime is 12021200010041. The reversal of 12021200010020 is 2001000212021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021200009983 and 12021200010010.

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, 4153271 + ... + 6425889.

It is an arithmetic number, because the mean of its divisors is an integer number (533279373480).

Almost surely, 2^{12021200010020} is an apocalyptic number.

12021200010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021200010020 is an abundant number, since it is smaller than the sum of its proper divisors (13576209917020).

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

12021200010020 is a wasteful number, since it uses less digits than its factorization.

12021200010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276324 (or 2276322 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12021200010020 its reverse (2001000212021), we get a palindrome (14022200222041).

The spelling of 12021200010020 in words is "twelve trillion, twenty-one billion, two hundred million, ten thousand, twenty".