221551130030 has 8 divisors (see below), whose sum is σ = 398792034072. Its totient is φ = 88620452008.

The previous prime is 221551130011. The next prime is 221551130071. The reversal of 221551130030 is 30031155122.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 221551129978 and 221551130005.

It is a congruent number.

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, 11077556492 + ... + 11077556511.

It is an arithmetic number, because the mean of its divisors is an integer number (49849004259).

Almost surely, 2^221551130030 is an apocalyptic number.

221551130030 is a deficient number, since it is larger than the sum of its proper divisors (177240904042).

221551130030 is a wasteful number, since it uses less digits than its factorization.

221551130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22155113010.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 221551130030 its reverse (30031155122), we get a palindrome (251582285152).

The spelling of 221551130030 in words is "two hundred twenty-one billion, five hundred fifty-one million, one hundred thirty thousand, thirty".