22145011 has 6 divisors (see below), whose sum is σ = 25760580. Its totient is φ = 18981396.

The previous prime is 22144979. The next prime is 22145027. The reversal of 22145011 is 11054122.

It is not a de Polignac number, because 22145011 - 2⁵ = 22144979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22145111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225921 + ... + 226018.

It is an arithmetic number, because the mean of its divisors is an integer number (4293430).

Almost surely, 2^22145011 is an apocalyptic number.

22145011 is a deficient number, since it is larger than the sum of its proper divisors (3615569).

22145011 is an equidigital number, since it uses as much as digits as its factorization.

22145011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451953 (or 451946 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 22145011 is about 4705.8485950995. The cubic root of 22145011 is about 280.8182315890.

Adding to 22145011 its reverse (11054122), we get a palindrome (33199133).

It can be divided in two parts, 2214 and 5011, that added together give a square (7225 = 85²).

The spelling of 22145011 in words is "twenty-two million, one hundred forty-five thousand, eleven".