221235224030 has 64 divisors (see below), whose sum is σ = 428566837248. Its totient is φ = 82069303680.

The previous prime is 221235224003. The next prime is 221235224039. The reversal of 221235224030 is 30422532122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221235224039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549917 + ... + 863063.

It is an arithmetic number, because the mean of its divisors is an integer number (6696356832).

Almost surely, 2^221235224030 is an apocalyptic number.

221235224030 is a deficient number, since it is larger than the sum of its proper divisors (207331613218).

221235224030 is a wasteful number, since it uses less digits than its factorization.

221235224030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313281.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 221235224030 its reverse (30422532122), we get a palindrome (251657756152).

The spelling of 221235224030 in words is "two hundred twenty-one billion, two hundred thirty-five million, two hundred twenty-four thousand, thirty".