1200211211211 has 8 divisors (see below), whose sum is σ = 1694415827664. Its totient is φ = 753073701120.

The previous prime is 1200211211179. The next prime is 1200211211231. The reversal of 1200211211211 is 1121121120021.

It is a happy number.

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

It is not a de Polignac number, because 1200211211211 - 2⁵ = 1200211211179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200211211231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11766776530 + ... + 11766776631.

It is an arithmetic number, because the mean of its divisors is an integer number (211801978458).

Almost surely, 2^{1200211211211} is an apocalyptic number.

1200211211211 is a deficient number, since it is larger than the sum of its proper divisors (494204616453).

1200211211211 is a wasteful number, since it uses less digits than its factorization.

1200211211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23533553181.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1200211211211 its reverse (1121121120021), we get a palindrome (2321332331232).

The spelling of 1200211211211 in words is "one trillion, two hundred billion, two hundred eleven million, two hundred eleven thousand, two hundred eleven".