1224022949 has 2 divisors, whose sum is σ = 1224022950. Its totient is φ = 1224022948.

The previous prime is 1224022871. The next prime is 1224022951. The reversal of 1224022949 is 9492204221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164037924 + 59985025 = 34118^2 + 7745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224022949 is a prime.

Together with 1224022951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221022949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612011474 + 612011475.

It is an arithmetic number, because the mean of its divisors is an integer number (612011475).

Almost surely, 2^1224022949 is an apocalyptic number.

It is an amenable number.

1224022949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224022949 is an equidigital number, since it uses as much as digits as its factorization.

1224022949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1224022949 is about 34986.0393442870. The cubic root of 1224022949 is about 1069.7029335163.

The spelling of 1224022949 in words is "one billion, two hundred twenty-four million, twenty-two thousand, nine hundred forty-nine".