12021020212200 has 96 divisors (see below), whose sum is σ = 37533257613600. Its totient is φ = 3182543458560.

The previous prime is 12021020212183. The next prime is 12021020212273. The reversal of 12021020212200 is 221202012021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12021020212200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71985067 + ... + 72151866.

It is an arithmetic number, because the mean of its divisors is an integer number (390971433475).

Almost surely, 2^{12021020212200} is an apocalyptic number.

12021020212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021020212200 is an abundant number, since it is smaller than the sum of its proper divisors (25512237401400).

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

12021020212200 is a wasteful number, since it uses less digits than its factorization.

12021020212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144137091 (or 144137082 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12021020212200 its reverse (221202012021), we get a palindrome (12242222224221).

The spelling of 12021020212200 in words is "twelve trillion, twenty-one billion, twenty million, two hundred twelve thousand, two hundred".