221345102 has 8 divisors (see below), whose sum is σ = 362201112. Its totient is φ = 100611400.

The previous prime is 221345093. The next prime is 221345141. The reversal of 221345102 is 201543122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030549 + ... + 5030592.

It is an arithmetic number, because the mean of its divisors is an integer number (45275139).

Almost surely, 2^221345102 is an apocalyptic number.

221345102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221345102 is a deficient number, since it is larger than the sum of its proper divisors (140856010).

221345102 is a wasteful number, since it uses less digits than its factorization.

221345102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061154.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 221345102 is about 14877.6712559459. The cubic root of 221345102 is about 604.9088968756.

Adding to 221345102 its reverse (201543122), we get a palindrome (422888224).

The spelling of 221345102 in words is "two hundred twenty-one million, three hundred forty-five thousand, one hundred two".