11011322011021 has 16 divisors (see below), whose sum is σ = 11316333772800. Its totient is φ = 10709277576048.

The previous prime is 11011322010943. The next prime is 11011322011031. The reversal of 11011322011021 is 12011022311011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11011322011021 - 2⁷ = 11011322010893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011322010986 and 11011322011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011322011031) 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, 51367300 + ... + 51581218.

It is an arithmetic number, because the mean of its divisors is an integer number (707270860800).

Almost surely, 2^{11011322011021} is an apocalyptic number.

It is an amenable number.

11011322011021 is a deficient number, since it is larger than the sum of its proper divisors (305011761779).

11011322011021 is a wasteful number, since it uses less digits than its factorization.

11011322011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220848.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11011322011021 its reverse (12011022311011), we get a palindrome (23022344322032).

The spelling of 11011322011021 in words is "eleven trillion, eleven billion, three hundred twenty-two million, eleven thousand, twenty-one".