11021002011 has 6 divisors (see below), whose sum is σ = 15919225140. Its totient is φ = 7347334668.

The previous prime is 11021001947. The next prime is 11021002021. The reversal of 11021002011 is 11020012011.

It is a happy number.

It is not a de Polignac number, because 11021002011 - 2⁶ = 11021001947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1224555779 = 11021002011 / (1 + 1 + 0 + 2 + 1 + 0 + 0 + 2 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 11021001984 and 11021002002.

It is not an unprimeable number, because it can be changed into a prime (11021002021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612277881 + ... + 612277898.

It is an arithmetic number, because the mean of its divisors is an integer number (2653204190).

Almost surely, 2^11021002011 is an apocalyptic number.

11021002011 is a deficient number, since it is larger than the sum of its proper divisors (4898223129).

11021002011 is a wasteful number, since it uses less digits than its factorization.

11021002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224555785 (or 1224555782 counting only the distinct ones).

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

Adding to 11021002011 its reverse (11020012011), we get a palindrome (22041014022).

The spelling of 11021002011 in words is "eleven billion, twenty-one million, two thousand, eleven".