22011012111 has 24 divisors (see below), whose sum is σ = 32647265280. Its totient is φ = 13179266320.

The previous prime is 22011012077. The next prime is 22011012161. The reversal of 22011012111 is 11121011022.

It is not a de Polignac number, because 22011012111 - 2⁶ = 22011012047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011012161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335151 + ... + 395408.

It is an arithmetic number, because the mean of its divisors is an integer number (1360302720).

Almost surely, 2^22011012111 is an apocalyptic number.

22011012111 is a deficient number, since it is larger than the sum of its proper divisors (10636253169).

22011012111 is a wasteful number, since it uses less digits than its factorization.

22011012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730667 (or 730656 counting only the distinct ones).

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

Adding to 22011012111 its reverse (11121011022), we get a palindrome (33132023133).

It can be divided in two parts, 220110 and 12111, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 22011012111 in words is "twenty-two billion, eleven million, twelve thousand, one hundred eleven".