221222303000 has 64 divisors (see below), whose sum is σ = 540167209920. Its totient is φ = 84641568000.

The previous prime is 221222302979. The next prime is 221222303039. The reversal of 221222303000 is 303222122.

It is a self number, because there is not a number n which added to its sum of digits gives 221222303000.

It is a congruent number.

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, 4786181 + ... + 4832180.

It is an arithmetic number, because the mean of its divisors is an integer number (8440112655).

Almost surely, 2^221222303000 is an apocalyptic number.

221222303000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221222303000 is an abundant number, since it is smaller than the sum of its proper divisors (318944906920).

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

221222303000 is a wasteful number, since it uses less digits than its factorization.

221222303000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9618405 (or 9618391 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 221222303000 its reverse (303222122), we get a palindrome (221525525122).

The spelling of 221222303000 in words is "two hundred twenty-one billion, two hundred twenty-two million, three hundred three thousand".