221322030030 has 24 divisors (see below), whose sum is σ = 575437278312. Its totient is φ = 59019207984.

The previous prime is 221322029977. The next prime is 221322030037. The reversal of 221322030030 is 30030223122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221322029985 and 221322030012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221322030037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1229566744 + ... + 1229566923.

It is an arithmetic number, because the mean of its divisors is an integer number (23976553263).

Almost surely, 2^221322030030 is an apocalyptic number.

221322030030 is an abundant number, since it is smaller than the sum of its proper divisors (354115248282).

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

221322030030 is a wasteful number, since it uses less digits than its factorization.

221322030030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459133680 (or 2459133677 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 221322030030 its reverse (30030223122), we get a palindrome (251352253152).

The spelling of 221322030030 in words is "two hundred twenty-one billion, three hundred twenty-two million, thirty thousand, thirty".