10021220001200 has 60 divisors (see below), whose sum is σ = 24176717605920. Its totient is φ = 3991716046080.

The previous prime is 10021220001167. The next prime is 10021220001203. The reversal of 10021220001200 is 210002212001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10021220001203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52316639 + ... + 52507838.

It is an arithmetic number, because the mean of its divisors is an integer number (402945293432).

Almost surely, 2^{10021220001200} is an apocalyptic number.

10021220001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021220001200 is an abundant number, since it is smaller than the sum of its proper divisors (14155497604720).

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

10021220001200 is a wasteful number, since it uses less digits than its factorization.

10021220001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104824734 (or 104824723 counting only the distinct ones).

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

Adding to 10021220001200 its reverse (210002212001), we get a palindrome (10231222213201).

The spelling of 10021220001200 in words is "ten trillion, twenty-one billion, two hundred twenty million, one thousand, two hundred".