22111012011 has 16 divisors (see below), whose sum is σ = 32479907328. Its totient is φ = 13267932000.

The previous prime is 22111011977. The next prime is 22111012019. The reversal of 22111012011 is 11021011122.

It is not a de Polignac number, because 22111012011 - 2¹⁵ = 22110979243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111012019) 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, 3313651 + ... + 3320316.

It is an arithmetic number, because the mean of its divisors is an integer number (2029994208).

Almost surely, 2^22111012011 is an apocalyptic number.

22111012011 is a deficient number, since it is larger than the sum of its proper divisors (10368895317).

22111012011 is a wasteful number, since it uses less digits than its factorization.

22111012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634082.

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

Adding to 22111012011 its reverse (11021011122), we get a palindrome (33132023133).

The spelling of 22111012011 in words is "twenty-two billion, one hundred eleven million, twelve thousand, eleven".