1200211111211 has 8 divisors (see below), whose sum is σ = 1384489186560. Its totient is φ = 1019137872168.

The previous prime is 1200211111199. The next prime is 1200211111219. The reversal of 1200211111211 is 1121111120021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200211111211 is a prime.

It is a super-2 number, since 2×1200211111211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200211111219) 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 7 ways as a sum of consecutive naturals, for example, 801208271 + ... + 801209768.

It is an arithmetic number, because the mean of its divisors is an integer number (173061148320).

Almost surely, 2^{1200211111211} is an apocalyptic number.

1200211111211 is a deficient number, since it is larger than the sum of its proper divisors (184278075349).

1200211111211 is a wasteful number, since it uses less digits than its factorization.

1200211111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602418153.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1200211111211 its reverse (1121111120021), we get a palindrome (2321322231232).

The spelling of 1200211111211 in words is "one trillion, two hundred billion, two hundred eleven million, one hundred eleven thousand, two hundred eleven".