221230303402 has 8 divisors (see below), whose sum is σ = 334378626912. Its totient is φ = 109770761100.

The previous prime is 221230303387. The next prime is 221230303453. The reversal of 221230303402 is 204303032122.

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

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, 422194974 + ... + 422195497.

It is an arithmetic number, because the mean of its divisors is an integer number (41797328364).

Almost surely, 2^221230303402 is an apocalyptic number.

221230303402 is a deficient number, since it is larger than the sum of its proper divisors (113148323510).

221230303402 is a wasteful number, since it uses less digits than its factorization.

221230303402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844390604.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 221230303402 its reverse (204303032122), we get a palindrome (425533335524).

The spelling of 221230303402 in words is "two hundred twenty-one billion, two hundred thirty million, three hundred three thousand, four hundred two".