11219939 has 2 divisors, whose sum is σ = 11219940. Its totient is φ = 11219938.

The previous prime is 11219933. The next prime is 11219953. The reversal of 11219939 is 93991211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11219939 - 2⁸ = 11219683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11219899 and 11219908.

It is not a weakly prime, because it can be changed into another prime (11219933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5609969 + 5609970.

It is an arithmetic number, because the mean of its divisors is an integer number (5609970).

Almost surely, 2^11219939 is an apocalyptic number.

11219939 is a deficient number, since it is larger than the sum of its proper divisors (1).

11219939 is an equidigital number, since it uses as much as digits as its factorization.

11219939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374, while the sum is 35.

The square root of 11219939 is about 3349.6177393846. The cubic root of 11219939 is about 223.8704807691.

The spelling of 11219939 in words is "eleven million, two hundred nineteen thousand, nine hundred thirty-nine".