22052012 has 6 divisors (see below), whose sum is σ = 38591028. Its totient is φ = 11026004.

The previous prime is 22052011. The next prime is 22052029. The reversal of 22052012 is 21025022.

It is a super-3 number, since 3×22052012³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22052011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756498 + ... + 2756505.

It is an arithmetic number, because the mean of its divisors is an integer number (6431838).

Almost surely, 2^22052012 is an apocalyptic number.

It is an amenable number.

22052012 is a deficient number, since it is larger than the sum of its proper divisors (16539016).

22052012 is a wasteful number, since it uses less digits than its factorization.

22052012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513007 (or 5513005 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22052012 is about 4695.9569844708. The cubic root of 22052012 is about 280.4245769573.

Adding to 22052012 its reverse (21025022), we get a palindrome (43077034).

The spelling of 22052012 in words is "twenty-two million, fifty-two thousand, twelve".