22451214077 has 2 divisors, whose sum is σ = 22451214078. Its totient is φ = 22451214076.

The previous prime is 22451214059. The next prime is 22451214119. The reversal of 22451214077 is 77041215422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20340179161 + 2111034916 = 142619^2 + 45946^2 .

It is a cyclic number.

It is not a de Polignac number, because 22451214077 - 2⁶ = 22451214013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22451214007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11225607038 + 11225607039.

It is an arithmetic number, because the mean of its divisors is an integer number (11225607039).

Almost surely, 2^22451214077 is an apocalyptic number.

It is an amenable number.

22451214077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22451214077 is an equidigital number, since it uses as much as digits as its factorization.

22451214077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 35.

Adding to 22451214077 its reverse (77041215422), we get a palindrome (99492429499).

The spelling of 22451214077 in words is "twenty-two billion, four hundred fifty-one million, two hundred fourteen thousand, seventy-seven".