22072070 has 16 divisors (see below), whose sum is σ = 40022208. Its totient is φ = 8763840.

The previous prime is 22072049. The next prime is 22072081. The reversal of 22072070 is 7027022.

22072070 = T₁₀₀ + T₁₀₁ + ... + T₅₁₀.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6686 + ... + 9425.

It is an arithmetic number, because the mean of its divisors is an integer number (2501388).

Almost surely, 2^22072070 is an apocalyptic number.

22072070 is a deficient number, since it is larger than the sum of its proper divisors (17950138).

22072070 is a wasteful number, since it uses less digits than its factorization.

22072070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16255.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 22072070 is about 4698.0921659755. The cubic root of 22072070 is about 280.5095737616.

Adding to 22072070 its reverse (7027022), we get a palindrome (29099092).

The spelling of 22072070 in words is "twenty-two million, seventy-two thousand, seventy".