22077071 has 4 divisors (see below), whose sum is σ = 22163232. Its totient is φ = 21990912.

The previous prime is 22077061. The next prime is 22077109. The reversal of 22077071 is 17077022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17077022 = 2 ⋅8538511.

It is a cyclic number.

It is not a de Polignac number, because 22077071 - 2⁶ = 22077007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22077071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42695 + ... + 43208.

It is an arithmetic number, because the mean of its divisors is an integer number (5540808).

Almost surely, 2^22077071 is an apocalyptic number.

22077071 is a deficient number, since it is larger than the sum of its proper divisors (86161).

22077071 is an equidigital number, since it uses as much as digits as its factorization.

22077071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86160.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 22077071 is about 4698.6243731543. The cubic root of 22077071 is about 280.5307577352.

The spelling of 22077071 in words is "twenty-two million, seventy-seven thousand, seventy-one".