22135012 has 24 divisors (see below), whose sum is σ = 39637080. Its totient is φ = 10813440.

The previous prime is 22134989. The next prime is 22135051. The reversal of 22135012 is 21053122.

It can be written as a sum of positive squares in 4 ways, for example, as 3936256 + 18198756 = 1984^2 + 4266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34212 + ... + 34852.

It is an arithmetic number, because the mean of its divisors is an integer number (1651545).

Almost surely, 2^22135012 is an apocalyptic number.

It is an amenable number.

22135012 is a deficient number, since it is larger than the sum of its proper divisors (17502068).

22135012 is a wasteful number, since it uses less digits than its factorization.

22135012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22135012 is about 4704.7860737764. The cubic root of 22135012 is about 280.7759598524.

Adding to 22135012 its reverse (21053122), we get a palindrome (43188134).

It can be divided in two parts, 2213 and 5012, that added together give a square (7225 = 85²).

The spelling of 22135012 in words is "twenty-two million, one hundred thirty-five thousand, twelve".