221300030142 has 12 divisors (see below), whose sum is σ = 479483398680. Its totient is φ = 73766676708.

The previous prime is 221300030123. The next prime is 221300030173. The reversal of 221300030142 is 241030003122.

221300030142 is a `hidden beast` number, since 2 + 21 + 300 + 0 + 301 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12294446119 = 221300030142 / (2 + 2 + 1 + 3 + 0 + 0 + 0 + 3 + 0 + 1 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6147223042 + ... + 6147223077.

It is an arithmetic number, because the mean of its divisors is an integer number (39956949890).

Almost surely, 2^221300030142 is an apocalyptic number.

221300030142 is an abundant number, since it is smaller than the sum of its proper divisors (258183368538).

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

221300030142 is a wasteful number, since it uses less digits than its factorization.

221300030142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12294446127 (or 12294446124 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 221300030142 its reverse (241030003122), we get a palindrome (462330033264).

The spelling of 221300030142 in words is "two hundred twenty-one billion, three hundred million, thirty thousand, one hundred forty-two".