11221895 has 8 divisors (see below), whose sum is σ = 13484400. Its totient is φ = 8965440.

The previous prime is 11221891. The next prime is 11221901. The reversal of 11221895 is 59812211.

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

It is not a de Polignac number, because 11221895 - 2² = 11221891 is a prime.

It is a super-3 number, since 3×11221895³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5756 + ... + 7454.

It is an arithmetic number, because the mean of its divisors is an integer number (1685550).

Almost surely, 2^11221895 is an apocalyptic number.

11221895 is a deficient number, since it is larger than the sum of its proper divisors (2262505).

11221895 is a wasteful number, since it uses less digits than its factorization.

11221895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025.

The product of its digits is 1440, while the sum is 29.

The square root of 11221895 is about 3349.9097002755. The cubic root of 11221895 is about 223.8834893133.

The spelling of 11221895 in words is "eleven million, two hundred twenty-one thousand, eight hundred ninety-five".