22207412 has 6 divisors (see below), whose sum is σ = 38862978. Its totient is φ = 11103704.

The previous prime is 22207411. The next prime is 22207421. The reversal of 22207412 is 21470222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14776336 + 7431076 = 3844^2 + 2726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22207411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775923 + ... + 2775930.

It is an arithmetic number, because the mean of its divisors is an integer number (6477163).

Almost surely, 2^22207412 is an apocalyptic number.

It is an amenable number.

22207412 is a deficient number, since it is larger than the sum of its proper divisors (16655566).

22207412 is a wasteful number, since it uses less digits than its factorization.

22207412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551857 (or 5551855 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 22207412 is about 4712.4740848094. The cubic root of 22207412 is about 281.0817507610.

Adding to 22207412 its reverse (21470222), we get a palindrome (43677634).

The spelling of 22207412 in words is "twenty-two million, two hundred seven thousand, four hundred twelve".