1011224399 has 2 divisors, whose sum is σ = 1011224400. Its totient is φ = 1011224398.

The previous prime is 1011224377. The next prime is 1011224483. The reversal of 1011224399 is 9934221101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011224399 is a prime.

It is a super-2 number, since 2×1011224399² = 2045149570265822402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011224329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505612199 + 505612200.

It is an arithmetic number, because the mean of its divisors is an integer number (505612200).

Almost surely, 2^1011224399 is an apocalyptic number.

1011224399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011224399 is an equidigital number, since it uses as much as digits as its factorization.

1011224399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1011224399 is about 31799.7547003118. The cubic root of 1011224399 is about 1003.7275544071.

The spelling of 1011224399 in words is "one billion, eleven million, two hundred twenty-four thousand, three hundred ninety-nine".