221034352 has 40 divisors (see below), whose sum is σ = 533930112. Its totient is φ = 86116800.

The previous prime is 221034349. The next prime is 221034367. The reversal of 221034352 is 253430122.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 88474 + ... + 90937.

Almost surely, 2^221034352 is an apocalyptic number.

221034352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221034352 is an abundant number, since it is smaller than the sum of its proper divisors (312895760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221034352 is a wasteful number, since it uses less digits than its factorization.

221034352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179437 (or 179431 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 221034352 is about 14867.2240852151. The cubic root of 221034352 is about 604.6256838085.

Adding to 221034352 its reverse (253430122), we get a palindrome (474464474).

The spelling of 221034352 in words is "two hundred twenty-one million, thirty-four thousand, three hundred fifty-two".