22066061 has 2 divisors, whose sum is σ = 22066062. Its totient is φ = 22066060.

The previous prime is 22066027. The next prime is 22066063. The reversal of 22066061 is 16066022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11600836 + 10465225 = 3406^2 + 3235^2 .

It is a cyclic number.

It is not a de Polignac number, because 22066061 - 2⁶ = 22065997 is a prime.

It is a super-2 number, since 2×22066061² = 973822096111442, which contains 22 as substring.

Together with 22066063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22066063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033030 + 11033031.

It is an arithmetic number, because the mean of its divisors is an integer number (11033031).

Almost surely, 2^22066061 is an apocalyptic number.

It is an amenable number.

22066061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22066061 is an equidigital number, since it uses as much as digits as its factorization.

22066061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22066061 is about 4697.4526075310. The cubic root of 22066061 is about 280.4841157202.

The spelling of 22066061 in words is "twenty-two million, sixty-six thousand, sixty-one".