11219965 has 8 divisors (see below), whose sum is σ = 13483008. Its totient is φ = 8963280.

The previous prime is 11219953. The next prime is 11219977. The reversal of 11219965 is 56991211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11219953) and next prime (11219977).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11219965 - 2⁵ = 11219933 is a prime.

It is a super-2 number, since 2×11219965² = 251775229202450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11219965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4260 + ... + 6370.

It is an arithmetic number, because the mean of its divisors is an integer number (1685376).

Almost surely, 2^11219965 is an apocalyptic number.

It is an amenable number.

11219965 is a deficient number, since it is larger than the sum of its proper divisors (2263043).

11219965 is a wasteful number, since it uses less digits than its factorization.

11219965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179.

The product of its digits is 4860, while the sum is 34.

The square root of 11219965 is about 3349.6216204222. The cubic root of 11219965 is about 223.8706536943.

The spelling of 11219965 in words is "eleven million, two hundred nineteen thousand, nine hundred sixty-five".