221434002244 has 48 divisors (see below), whose sum is σ = 483652221696. Its totient is φ = 86366448000.

The previous prime is 221434002239. The next prime is 221434002253. The reversal of 221434002244 is 442200434122.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 4258207 + ... + 4309894.

It is an arithmetic number, because the mean of its divisors is an integer number (10076087952).

Almost surely, 2^221434002244 is an apocalyptic number.

It is an amenable number.

221434002244 is an abundant number, since it is smaller than the sum of its proper divisors (262218219452).

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

221434002244 is a wasteful number, since it uses less digits than its factorization.

221434002244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8568196 (or 8568194 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 221434002244 its reverse (442200434122), we get a palindrome (663634436366).

The spelling of 221434002244 in words is "two hundred twenty-one billion, four hundred thirty-four million, two thousand, two hundred forty-four".