122224477 has 2 divisors, whose sum is σ = 122224478. Its totient is φ = 122224476.

The previous prime is 122224471. The next prime is 122224481. The reversal of 122224477 is 774422221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88247236 + 33977241 = 9394^2 + 5829^2 .

It is an emirp because it is prime and its reverse (774422221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122224477 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122224471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61112238 + 61112239.

It is an arithmetic number, because the mean of its divisors is an integer number (61112239).

Almost surely, 2^122224477 is an apocalyptic number.

It is an amenable number.

122224477 is a deficient number, since it is larger than the sum of its proper divisors (1).

122224477 is an equidigital number, since it uses as much as digits as its factorization.

122224477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544, while the sum is 31.

The square root of 122224477 is about 11055.5179435429. The cubic root of 122224477 is about 496.2715693831.

Adding to 122224477 its reverse (774422221), we get a palindrome (896646698).

The spelling of 122224477 in words is "one hundred twenty-two million, two hundred twenty-four thousand, four hundred seventy-seven".