22053161261 has 2 divisors, whose sum is σ = 22053161262. Its totient is φ = 22053161260.

The previous prime is 22053161239. The next prime is 22053161293. The reversal of 22053161261 is 16216135022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19992546025 + 2060615236 = 141395^2 + 45394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22053161261 is a prime.

It is a super-2 number, since 2×22053161261² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22053151261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11026580630 + 11026580631.

It is an arithmetic number, because the mean of its divisors is an integer number (11026580631).

Almost surely, 2^22053161261 is an apocalyptic number.

It is an amenable number.

22053161261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22053161261 is an equidigital number, since it uses as much as digits as its factorization.

22053161261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 22053161261 its reverse (16216135022), we get a palindrome (38269296283).

The spelling of 22053161261 in words is "twenty-two billion, fifty-three million, one hundred sixty-one thousand, two hundred sixty-one".