11211002011 has 16 divisors (see below), whose sum is σ = 12546027648. Its totient is φ = 9929808000.

The previous prime is 11211001973. The next prime is 11211002017. The reversal of 11211002011 is 11020011211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211002011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211002017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160120 + ... + 219226.

It is an arithmetic number, because the mean of its divisors is an integer number (784126728).

Almost surely, 2^11211002011 is an apocalyptic number.

11211002011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11211002011 is a deficient number, since it is larger than the sum of its proper divisors (1335025637).

11211002011 is a wasteful number, since it uses less digits than its factorization.

11211002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59562.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11211002011 its reverse (11020011211), we get a palindrome (22231013222).

The spelling of 11211002011 in words is "eleven billion, two hundred eleven million, two thousand, eleven".