221141235 has 16 divisors (see below), whose sum is σ = 404372736. Its totient is φ = 101093088.

The previous prime is 221141213. The next prime is 221141243. The reversal of 221141235 is 532141122.

It is not a de Polignac number, because 221141235 - 2⁹ = 221140723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052949 + ... + 1053158.

It is an arithmetic number, because the mean of its divisors is an integer number (25273296).

Almost surely, 2^221141235 is an apocalyptic number.

221141235 is a deficient number, since it is larger than the sum of its proper divisors (183231501).

221141235 is a wasteful number, since it uses less digits than its factorization.

221141235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106122.

The product of its digits is 480, while the sum is 21.

The square root of 221141235 is about 14870.8182357260. The cubic root of 221141235 is about 604.7231253640.

Adding to 221141235 its reverse (532141122), we get a palindrome (753282357).

The spelling of 221141235 in words is "two hundred twenty-one million, one hundred forty-one thousand, two hundred thirty-five".