1101215 has 4 divisors (see below), whose sum is σ = 1321464. Its totient is φ = 880968.

The previous prime is 1101211. The next prime is 1101229. The reversal of 1101215 is 5121011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101215 - 2² = 1101211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101196 and 1101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110117 + ... + 110126.

It is an arithmetic number, because the mean of its divisors is an integer number (330366).

2^1101215 is an apocalyptic number.

1101215 is a deficient number, since it is larger than the sum of its proper divisors (220249).

1101215 is an equidigital number, since it uses as much as digits as its factorization.

1101215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220248.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 1101215 is about 1049.3879168353. The cubic root of 1101215 is about 103.2660042378.

Adding to 1101215 its reverse (5121011), we get a palindrome (6222226).

The spelling of 1101215 in words is "one million, one hundred one thousand, two hundred fifteen".