1228122253 has 2 divisors, whose sum is σ = 1228122254. Its totient is φ = 1228122252.

The previous prime is 1228122223. The next prime is 1228122271. The reversal of 1228122253 is 3522218221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1145348649 + 82773604 = 33843^2 + 9098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228122253 - 2⁵ = 1228122221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228122223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614061126 + 614061127.

It is an arithmetic number, because the mean of its divisors is an integer number (614061127).

Almost surely, 2^1228122253 is an apocalyptic number.

It is an amenable number.

1228122253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228122253 is an equidigital number, since it uses as much as digits as its factorization.

1228122253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 1228122253 is about 35044.5752292705. The cubic root of 1228122253 is about 1070.8957628340.

The spelling of 1228122253 in words is "one billion, two hundred twenty-eight million, one hundred twenty-two thousand, two hundred fifty-three".