22212111011 has 4 divisors (see below), whose sum is σ = 23177854992. Its totient is φ = 21246367032.

The previous prime is 22212111001. The next prime is 22212111059. The reversal of 22212111011 is 11011121222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11011121222 = 2 ⋅5505560611.

It is a cyclic number.

It is not a de Polignac number, because 22212111011 - 2¹⁴ = 22212094627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212111001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482871956 + ... + 482872001.

It is an arithmetic number, because the mean of its divisors is an integer number (5794463748).

Almost surely, 2^22212111011 is an apocalyptic number.

22212111011 is a deficient number, since it is larger than the sum of its proper divisors (965743981).

22212111011 is an equidigital number, since it uses as much as digits as its factorization.

22212111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965743980.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22212111011 its reverse (11011121222), we get a palindrome (33223232233).

It can be divided in two parts, 2221211 and 1011, that added together give a palindrome (2222222).

The spelling of 22212111011 in words is "twenty-two billion, two hundred twelve million, one hundred eleven thousand, eleven".