22012532 has 6 divisors (see below), whose sum is σ = 38521938. Its totient is φ = 11006264.

The previous prime is 22012519. The next prime is 22012597. The reversal of 22012532 is 23521022.

It can be written as a sum of positive squares in only one way, i.e., 18028516 + 3984016 = 4246^2 + 1996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22012532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751563 + ... + 2751570.

It is an arithmetic number, because the mean of its divisors is an integer number (6420323).

Almost surely, 2^22012532 is an apocalyptic number.

It is an amenable number.

22012532 is a deficient number, since it is larger than the sum of its proper divisors (16509406).

22012532 is a wasteful number, since it uses less digits than its factorization.

22012532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503137 (or 5503135 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22012532 is about 4691.7514853197. The cubic root of 22012532 is about 280.2571277494.

Adding to 22012532 its reverse (23521022), we get a palindrome (45533554).

The spelling of 22012532 in words is "twenty-two million, twelve thousand, five hundred thirty-two".