1219940299 has 2 divisors, whose sum is σ = 1219940300. Its totient is φ = 1219940298.

The previous prime is 1219940297. The next prime is 1219940321. The reversal of 1219940299 is 9920499121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1219940299 - 2¹ = 1219940297 is a prime.

Together with 1219940297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1219940297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609970149 + 609970150.

It is an arithmetic number, because the mean of its divisors is an integer number (609970150).

Almost surely, 2^1219940299 is an apocalyptic number.

1219940299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219940299 is an equidigital number, since it uses as much as digits as its factorization.

1219940299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 1219940299 is about 34927.6437653616. The cubic root of 1219940299 is about 1068.5123002762.

The spelling of 1219940299 in words is "one billion, two hundred nineteen million, nine hundred forty thousand, two hundred ninety-nine".