22067261 has 2 divisors, whose sum is σ = 22067262. Its totient is φ = 22067260.

The previous prime is 22067251. The next prime is 22067273. The reversal of 22067261 is 16276022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 1907161 = 4490^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 22067261 - 2¹⁴ = 22050877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22067261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22067251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033630 + 11033631.

It is an arithmetic number, because the mean of its divisors is an integer number (11033631).

Almost surely, 2^22067261 is an apocalyptic number.

It is an amenable number.

22067261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22067261 is an equidigital number, since it uses as much as digits as its factorization.

22067261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22067261 is about 4697.5803345978. The cubic root of 22067261 is about 280.4892000718.

The spelling of 22067261 in words is "twenty-two million, sixty-seven thousand, two hundred sixty-one".