22111021011 has 16 divisors (see below), whose sum is σ = 29532032640. Its totient is φ = 14715370560.

The previous prime is 22111021007. The next prime is 22111021061. The reversal of 22111021011 is 11012011122.

It is not a de Polignac number, because 22111021011 - 2² = 22111021007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111021061) 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, 7842160 + ... + 7844978.

It is an arithmetic number, because the mean of its divisors is an integer number (1845752040).

Almost surely, 2^22111021011 is an apocalyptic number.

22111021011 is a deficient number, since it is larger than the sum of its proper divisors (7421011629).

22111021011 is a wasteful number, since it uses less digits than its factorization.

22111021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22111021011 its reverse (11012011122), we get a palindrome (33123032133).

The spelling of 22111021011 in words is "twenty-two billion, one hundred eleven million, twenty-one thousand, eleven".