22005120061 has 2 divisors, whose sum is σ = 22005120062. Its totient is φ = 22005120060.

The previous prime is 22005120037. The next prime is 22005120079. The reversal of 22005120061 is 16002150022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19208296836 + 2796823225 = 138594^2 + 52885^2 .

It is a cyclic number.

It is not a de Polignac number, because 22005120061 - 2²⁹ = 21468249149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22005123061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002560030 + 11002560031.

It is an arithmetic number, because the mean of its divisors is an integer number (11002560031).

Almost surely, 2^22005120061 is an apocalyptic number.

It is an amenable number.

22005120061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22005120061 is an equidigital number, since it uses as much as digits as its factorization.

22005120061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 22005120061 its reverse (16002150022), we get a palindrome (38007270083).

The spelling of 22005120061 in words is "twenty-two billion, five million, one hundred twenty thousand, sixty-one".