22120061 has 2 divisors, whose sum is σ = 22120062. Its totient is φ = 22120060.

The previous prime is 22120057. The next prime is 22120099. The reversal of 22120061 is 16002122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 5359225 = 4094^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120061 - 2² = 22120057 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060030 + 11060031.

It is an arithmetic number, because the mean of its divisors is an integer number (11060031).

Almost surely, 2^22120061 is an apocalyptic number.

It is an amenable number.

22120061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120061 is an equidigital number, since it uses as much as digits as its factorization.

22120061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 22120061 is about 4703.1968914771. The cubic root of 22120061 is about 280.7127293035.

Adding to 22120061 its reverse (16002122), we get a palindrome (38122183).

The spelling of 22120061 in words is "twenty-two million, one hundred twenty thousand, sixty-one".