1200100211211 has 32 divisors (see below), whose sum is σ = 1750545358848. Its totient is φ = 725273879040.

The previous prime is 1200100211197. The next prime is 1200100211237. The reversal of 1200100211211 is 1121120010021.

It is not a de Polignac number, because 1200100211211 - 2⁵ = 1200100211179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200100212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83119485 + ... + 83133921.

It is an arithmetic number, because the mean of its divisors is an integer number (54704542464).

Almost surely, 2^{1200100211211} is an apocalyptic number.

1200100211211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200100211211 is a deficient number, since it is larger than the sum of its proper divisors (550445147637).

1200100211211 is a wasteful number, since it uses less digits than its factorization.

1200100211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1200100211211 its reverse (1121120010021), we get a palindrome (2321220221232).

The spelling of 1200100211211 in words is "one trillion, two hundred billion, one hundred million, two hundred eleven thousand, two hundred eleven".