10221135 has 8 divisors (see below), whose sum is σ = 16353840. Its totient is φ = 5451264.

The previous prime is 10221091. The next prime is 10221149. The reversal of 10221135 is 53112201.

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

It is not a de Polignac number, because 10221135 - 2⁷ = 10221007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 681409 = 10221135 / (1 + 0 + 2 + 2 + 1 + 1 + 3 + 5).

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, 340690 + ... + 340719.

It is an arithmetic number, because the mean of its divisors is an integer number (2044230).

Almost surely, 2^10221135 is an apocalyptic number.

10221135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10221135 is a deficient number, since it is larger than the sum of its proper divisors (6132705).

10221135 is an equidigital number, since it uses as much as digits as its factorization.

10221135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681417.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 10221135 is about 3197.0509848922. The cubic root of 10221135 is about 217.0199745181.

Adding to 10221135 its reverse (53112201), we get a palindrome (63333336).

The spelling of 10221135 in words is "ten million, two hundred twenty-one thousand, one hundred thirty-five".