22061272 has 8 divisors (see below), whose sum is σ = 41364900. Its totient is φ = 11030632.

The previous prime is 22061269. The next prime is 22061293. The reversal of 22061272 is 27216022.

It is a tau number, because it is divible by the number of its divisors (8).

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, 1378822 + ... + 1378837.

Almost surely, 2^22061272 is an apocalyptic number.

It is an amenable number.

22061272 is a deficient number, since it is larger than the sum of its proper divisors (19303628).

22061272 is a wasteful number, since it uses less digits than its factorization.

22061272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757665 (or 2757661 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 22061272 is about 4696.9428355048. The cubic root of 22061272 is about 280.4638230844.

Adding to 22061272 its reverse (27216022), we get a palindrome (49277294).

The spelling of 22061272 in words is "twenty-two million, sixty-one thousand, two hundred seventy-two".