11211212200011 has 8 divisors (see below), whose sum is σ = 14987312394240. Its totient is φ = 7454626736232.

The previous prime is 11211212199931. The next prime is 11211212200073. The reversal of 11211212200011 is 11000221211211.

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 11211212200011 - 2⁷ = 11211212199883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211212200411) 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, 4878681271 + ... + 4878683568.

It is an arithmetic number, because the mean of its divisors is an integer number (1873414049280).

Almost surely, 2^{11211212200011} is an apocalyptic number.

11211212200011 is a deficient number, since it is larger than the sum of its proper divisors (3776100194229).

11211212200011 is an equidigital number, since it uses as much as digits as its factorization.

11211212200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757365225.

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

Adding to 11211212200011 its reverse (11000221211211), we get a palindrome (22211433411222).

The spelling of 11211212200011 in words is "eleven trillion, two hundred eleven billion, two hundred twelve million, two hundred thousand, eleven".