2211012001200 has 60 divisors (see below), whose sum is σ = 7082608447688. Its totient is φ = 589603200000.

The previous prime is 2211012001193. The next prime is 2211012001201. The reversal of 2211012001200 is 21002101122.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2211012001201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 921253801 + ... + 921256200.

Almost surely, 2^{2211012001200} is an apocalyptic number.

2211012001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211012001200 is an abundant number, since it is smaller than the sum of its proper divisors (4871596446488).

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

2211012001200 is a wasteful number, since it uses less digits than its factorization.

2211012001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842510022 (or 1842510011 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2211012001200 its reverse (21002101122), we get a palindrome (2232014102322).

The spelling of 2211012001200 in words is "two trillion, two hundred eleven billion, twelve million, one thousand, two hundred".