22561202 has 4 divisors (see below), whose sum is σ = 33841806. Its totient is φ = 11280600.

The previous prime is 22561181. The next prime is 22561219. The reversal of 22561202 is 20216522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20216522 = 2 ⋅10108261.

It can be written as a sum of positive squares in only one way, i.e., 18395521 + 4165681 = 4289^2 + 2041^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5640299 + ... + 5640302.

Almost surely, 2^22561202 is an apocalyptic number.

22561202 is a deficient number, since it is larger than the sum of its proper divisors (11280604).

22561202 is a wasteful number, since it uses less digits than its factorization.

22561202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280603.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 22561202 is about 4749.8633664559. The cubic root of 22561202 is about 282.5665470918.

Adding to 22561202 its reverse (20216522), we get a palindrome (42777724).

The spelling of 22561202 in words is "twenty-two million, five hundred sixty-one thousand, two hundred two".