11021023211 has 32 divisors (see below), whose sum is σ = 12850306560. Its totient is φ = 9341222400.

The previous prime is 11021023199. The next prime is 11021023253. The reversal of 11021023211 is 11232012011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021023211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021023271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12150620 + ... + 12151526.

It is an arithmetic number, because the mean of its divisors is an integer number (401572080).

Almost surely, 2^11021023211 is an apocalyptic number.

11021023211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11021023211 is a deficient number, since it is larger than the sum of its proper divisors (1829283349).

11021023211 is a wasteful number, since it uses less digits than its factorization.

11021023211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11021023211 its reverse (11232012011), we get a palindrome (22253035222).

The spelling of 11021023211 in words is "eleven billion, twenty-one million, twenty-three thousand, two hundred eleven".