1200211000011 has 12 divisors (see below), whose sum is σ = 1809013681488. Its totient is φ = 765351941904.

The previous prime is 1200210999989. The next prime is 1200211000013. The reversal of 1200211000011 is 1100001120021.

It is a happy number.

It is not a de Polignac number, because 1200211000011 - 2⁶ = 1200210999947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1200210999957 and 1200211000002.

It is not an unprimeable number, because it can be changed into a prime (1200211000013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2899060180 + ... + 2899060593.

It is an arithmetic number, because the mean of its divisors is an integer number (150751140124).

Almost surely, 2^{1200211000011} is an apocalyptic number.

1200211000011 is a deficient number, since it is larger than the sum of its proper divisors (608802681477).

1200211000011 is a wasteful number, since it uses less digits than its factorization.

1200211000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798120802 (or 5798120799 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1200211000011 its reverse (1100001120021), we get a palindrome (2300212120032).

The spelling of 1200211000011 in words is "one trillion, two hundred billion, two hundred eleven million, eleven", and thus it is an aban number.