221135002 has 16 divisors (see below), whose sum is σ = 364852224. Its totient is φ = 100514700.

The previous prime is 221134999. The next prime is 221135003. The reversal of 221135002 is 200531122.

221135002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221135003) 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, 38874 + ... + 44197.

It is an arithmetic number, because the mean of its divisors is an integer number (22803264).

Almost surely, 2^221135002 is an apocalyptic number.

221135002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221135002 is a deficient number, since it is larger than the sum of its proper divisors (143717222).

221135002 is an equidigital number, since it uses as much as digits as its factorization.

221135002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83106 (or 83084 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 221135002 is about 14870.6086627280. The cubic root of 221135002 is about 604.7174438145.

Adding to 221135002 its reverse (200531122), we get a palindrome (421666124).

The spelling of 221135002 in words is "two hundred twenty-one million, one hundred thirty-five thousand, two".