22000210261 has 2 divisors, whose sum is σ = 22000210262. Its totient is φ = 22000210260.

The previous prime is 22000210157. The next prime is 22000210273. The reversal of 22000210261 is 16201200022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21887723025 + 112487236 = 147945^2 + 10606^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000210261 - 2¹³ = 22000202069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000210291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000105130 + 11000105131.

It is an arithmetic number, because the mean of its divisors is an integer number (11000105131).

Almost surely, 2^22000210261 is an apocalyptic number.

It is an amenable number.

22000210261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000210261 is an equidigital number, since it uses as much as digits as its factorization.

22000210261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22000210261 its reverse (16201200022), we get a palindrome (38201410283).

The spelling of 22000210261 in words is "twenty-two billion, two hundred ten thousand, two hundred sixty-one".