2221012012200 has 48 divisors (see below), whose sum is σ = 6885137239680. Its totient is φ = 592269869760.

The previous prime is 2221012012181. The next prime is 2221012012267. The reversal of 2221012012200 is 22102101222.

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 2221012012200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1850842744 + ... + 1850843943.

It is an arithmetic number, because the mean of its divisors is an integer number (143440359160).

Almost surely, 2^{2221012012200} is an apocalyptic number.

2221012012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221012012200 is an abundant number, since it is smaller than the sum of its proper divisors (4664125227480).

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

2221012012200 is a wasteful number, since it uses less digits than its factorization.

2221012012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701686706 (or 3701686697 counting only the distinct ones).

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

Adding to 2221012012200 its reverse (22102101222), we get a palindrome (2243114113422).

The spelling of 2221012012200 in words is "two trillion, two hundred twenty-one billion, twelve million, twelve thousand, two hundred".